U.S. Route 191: Difference between revisions

U.S. Route 191
U.S. Route 191
	US 191 highlighted in red
Route information
	Auxiliary route of US 91
Length	1,544.54 mi (2,485.70 km)
Existed	1926–present
Major junctions
South end	SR 80 in Douglas, AZ
	I-10 in Willcox, AZ; I-40 in Sanders, AZ; US 491 in Monticello, UT; I-70 / US 6 / US 50 by Green River, UT; US 6 in Price, UT; US 40 in Duchesne and Vernal, UT; I-80 / US 30 in Rock Springs, WY; US 14 / US 16 / US 20 in Yellowstone Nat'l. Park; I-90 in Bozeman, MT; US 2 in Malta, MT;
North end	Highway 4 at Canada–US border near Loring, MT
Standort
Land	Vereinigte Staaten
States	Arizona, Utah, Wyoming, Montana
Highway system
	United States Numbered Highway System; List; Special; Divided;
	National Forest Scenic Byway

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Revision as of 03:55, 15 May 2024

U.S. Route 191 (US 191) is a north–south highway in the Western United States and a spur of parent route U.S. Route 91 that has two segments. The southern segment runs for 1,102 miles (1,773 km) from Douglas, Arizona on the Mexican border to the southern part of Yellowstone National Park.^[1]^[2]^[3] The northern segment runs for 442 miles (711 km) from the northern part of Yellowstone National Park to Loring, Montana, at the Canada–US border.^[4] Unnumbered roads within Yellowstone National Park connect the two segments. The highway passes through the states of Arizona, Utah, Wyoming, and Montana.

The highway was designated in 1926 and its routing has changed drastically through the years. The modern US 191 bears almost no resemblance to the original route, which was primarily in the state of Idaho. Most of the current route of US 191 was formed in 1981. Since the extensions in the 1980s and 1990s, U.S. Route 191 is much longer than its parent route to which it no longer connects, and it is one of the longest U.S. three-digit routes.

Route description

Lengths
	mi^[5]^[1]^[2]^[3]^[4]	km
AZ	516.50	831.23
UT	404.74	651.37
WY	181.14	291.52
MT	442.16	711.59
Total	1,544.54	2,485.70

Arizona

US 191 begins in Cochise County, Arizona at a signaled intersection with Arizona State Route 80 (SR 80) and Historic U.S. Route 80 (Historic US 80) near Douglas.^[1] The highway then proceeds north past Bisbee Douglas International Airport passing through the hamlets of Elfrida and McNeal. Near Sunizona, US 191 intersects with the western terminus of SR 181. US 191 then curves west for 7.5 miles (12.1 km) before turning northwest through Sunsites and Cochise. US 191 intersects Interstate 10 (I-10) near Cochise at a trumpet interchange (I-10 Exit 331). US 191 and I-10 run concurrent for 20.9 miles (33.6 km) around Willcox. In Willcox, I-10/US 191 serves as the northern terminus for SR 186 at Exit 340. The city itself is served by the Willcox I-10 Business Loop, which begins and ends at I-10/US 191 southwest and northeast of the city. In Bowie Junction at Exit 352, US 191 leaves I-10 and heads north, exiting Cochise County and entering Graham County.^[6] US 191 has a ten-mile (16 km) overlay with US 70 east of Safford. The route links to State Route 366 (SR 366) and SR 266 to the south of Safford. The route between Springerville and Morenci was designated a National Scenic Byway and given the name of Coronado Trail Scenic Byway, as this approximates the path taken by Francisco Vásquez de Coronado between 1540 and 1542.^[7] This is a very dangerous mountain road with many sharp curves and little or no shoulders on steep cliffs. North of the byway, the highway is the primary route to access Canyon de Chelly National Monument. US 191 traverses the Navajo Nation before entering Utah.^[1]^[8]

US 191 has a detached business route in Arizona, running from SR 80/Historic US 80 in Douglas, along Pan American Ave to the US Customs/Immigration Port of Entry at the border with Mexico.^[1]^[8] The portion of this route between its intersection with SR 80 near Douglas and the intersection with Interstate 40 at Sanders was formerly the major Arizona portion of US 666.^[9] Part of US 191 through the Navajo Nation is designated by the Arizona Department of Transportation as the Tse'nikani Flat Mesa Rock Scenic Road.^[7]

Utah

US 191 serves the eastern half of the state. The road enters Utah in a remote portion of the Navajo Nation. The highway passes through mostly desolate areas of eastern Utah. Several portions are National or Utah Scenic Byways. It passes through Bluff, Blanding, Monticello (the seat of San Juan County), and Moab, the largest city in southeastern Utah and the seat of Grand County. It connects with U.S. Route 6 and 50 (temp)as it joins Interstate 70 going due west through the town and crossing the major river at Green river, home to the John Wesley Powell Museum. A few miles out of town it splits off I-70 and continues north between the San Rafael Reef to the west and Book cliffs to the east through Emery County. It then enters the historic coalfields of Carbon County, passing through Wellington, Price, largest city in Eastern Utah home to the USU Eastern Prehistoric museum, and historic Helper, the main stop for Amtrak between Provo Ut and Grand Jct. Colorado.In addition to linking many rural towns in Utah to I-70 and US 40, the highway served to interconnect several national and state parks for tourism, namely Canyonlands National Park, Arches National Park, Bears Ears National Monument, and Dead Horse Point State Park. The highway exits Utah just after crossing the Flaming Gorge Reservoir.

Wyoming

US 191 enters Wyoming near a geographical feature known as Minnie's Gap, just east of Flaming Gorge National Recreation Area. The route proceeds north through rugged desert country following an alignment mostly constructed during the 1970s, to a junction with Interstate 80 at Exit 99, just west of Rock Springs. This segment of the route is known locally as "East Flaming Gorge Road."

The route is then concurrent with Interstate 80 eastward for approximately five miles (8.0 km), passing just north of Rock Springs. US 191 diverges northward at Exit 104, following the former route of US 187. Traveling through high desert country, the route passes through Eden, Farson, and Pinedale before meeting US 189 at Daniel Junction. Continuing north, the road traverses increasingly mountainous terrain, entering the Bridger-Teton National Forest and passing through the small community of Bondurant before descending through the narrow Hoback River Canyon to an intersection with US 26 and US 89 at Hoback Junction. The route then follows the Snake River valley northward to Jackson. US 191 is concurrent with US 189 between Daniel Junction and Jackson, and with US 26 and US 89 between Hoback Junction and Jackson.

North of Jackson, US 191 soon enters Grand Teton National Park, running concurrently with US 26 and US 89. The highway meets US 287 at Moran Junction, inside the park; US 191, US 89, and US 287 are concurrent north of Moran, but the highways are not signed. Continuing through forested, mountainous country, the route passes through the John D. Rockefeller Jr. Memorial Parkway before ending at the South Entrance of Yellowstone National Park. While US 191 and other U.S. Routes are officially discontinuous through the park, some commercially produced maps show these highways running inside Yellowstone National Park itself along its unnumbered roads and across the Wyoming–Montana state line.

Montana

US 191 in Montana begins at the West Entrance to Yellowstone National Park, at the edge of the town of West Yellowstone. The highway heads north, running concurrently with US 287 for eight miles (13 km) before veering slightly east and entering Yellowstone. US 191 continues northward through Yellowstone, traversing forested, mountainous terrain and briefly looping into the state of Wyoming, before leaving the park in the upper reaches of the Gallatin River canyon. The route travels northward through the narrow canyon, past the resort community of Big Sky, then entering the Gallatin Valley near the town of Gallatin Gateway, Montana. US 191 travels north and east through the valley to the city of Bozeman, which is the largest city along the entire US 191 route.

From Bozeman, US 191 is concurrent with I-90 eastward 58 miles (93 km) to Big Timber, where it proceeds north. The road travels through hilly ranch country near the eastern edge of the Crazy Mountains to Harlowton, where US 191 is briefly concurrent with US 12. North of Harlowton, US 191 is concurrent with Montana Highway 3 for 37 miles (60 km), to Eddie's Corner. US 191 proceeds eastward from Eddie's Corner to Lewistown, on a roadway shared with US 87 and Montana 200, in a wrong-way concurrency.

US 191 reaches the Canada–US border after going through Lewistown, across the Missouri River at the Charles M. Russell National Wildlife Refuge, and through Malta. It ends at the international border at Port Morgan, and the road continues into Saskatchewan as Highway 4 toward Swift Current.

History

Background

The routing of US 191 has drastically changed through the years having been extended and shortened several times. The original route designated in 1926 ran from Idaho Falls, Idaho, to West Yellowstone, Montana along the route now numbered U.S. Route 20. West Yellowstone is the only town that has been continuously served by the highway since its commissioning. On February 1, 1935, US 191 was extended over Montana Highway 187 (also known as the Gallatin Way) to Bozeman, Montana.^[10]

At one time US 191 connected to its parent, US 91, twice: at Idaho Falls, Idaho and Brigham City, Utah. Today the highway does not connect to its parent, or even enter Idaho. In Utah, there have been 2 completely different iterations of U.S. 191 serving different areas of the state. The original iteration is now State Route 13, which is mostly a frontage road for Interstate 15.^[11] In this alignment, the route in between Idaho Falls and the Utah line also paralleled I-15. As US 191 has mostly been extended while US 91 has largely been truncated, US 191 is now ten times longer than its parent.

1981 extension

By 1981, due to the construction of Interstate 15 and extension of other U.S. Highway designations, US 191 had been truncated to a route between West Yellowstone and Malta, Montana. Utah and Wyoming lobbied AASHTO to create a single highway that would connect several National Parks in their states to facilitate tourism. The initial proposal was to extend U.S. Route 163 north into Wyoming. However it was later decided to add Arizona to this proposal for a new highway and instead extend US 191 south.^[12] Most of the southern extension recycled existing U.S. and state highways. However, some new sections were constructed. When the 1981 extension was finished, US 191 reached Interstate 40 in Arizona.^[13]

In Wyoming, the new US 191 absorbed what was U.S. Route 187, formed in 1926 as a branch from US 87W (now US 287) at Jackson Lake Junction, Wyoming south to US 30 in Rock Springs.^[13] Although it became part of US 191 in 1981, the American Association of State Highway and Transportation Officials still lists it in their latest log (1989), with a short independent section in Rock Springs between former US 30 (now US 30 Business) and I-80.

A combination of new construction and the upgrading of county roads created a more direct route between Interstate 80 in Wyoming and Flaming Gorge Reservoir.

Through Utah, US-191 absorbed SR-33, SR-260, and most of SR-44. From Crescent Junction to Bluff was previously numbered U.S. Route 163, eliminating all but a short segment of that route.^[13] US 191 was extended over BIA Route 12 from Bluff, Utah to a junction with U.S. Route 160 in Arizona.^[14] The 1981 extension caused US 191 to enter Arizona for the first time in its history, ending at I-40 in Chambers, Arizona. Between US 160 and I-40 the highway absorbed the route of former State Route 63.^[15]

Later extensions

In 1992, Arizona requested a new number for its portion of US 666. The state wished to remove the US 666 designation from within Arizona, due to public concerns relating to the biblical reference to the number "666". A secondary reason given by the state was the constant theft of US 666 shields and navigational markers along the highway.^[16] As a result, US 191 was extended over I-40 to Sanders, where it absorbed the route of US 666 from Sanders to the Mexican border at Douglas, Arizona. Following the extension of US 191, US 666 was truncated out of Arizona to I-40 in Gallup, New Mexico.^[17] In 1996, it became the latest U.S. highway to travel from border to border, with the extension from Malta, Montana to the Canada–US border, absorbing former Montana Secondary Highway 242.^[12] In 2003, the remainder of US 666 between I-40 and US 191 in Monticello, Utah was renumbered US 491. The x91 number was decided because the road meets US 191 in Monticello.^[17]

Major intersections

Southern segment

Arizona: SR 80 / Historic US 80 in Douglas; I-10 north-northwest of Cochise. The highways travel concurrently to northeast of Willcox.; US 70 in Safford. The highways travel concurrently to San Jose.; US 180 in Alpine. The highways travel concurrently to St. Johns.; US 60 in Springerville. The highways travel concurrently through Springerville.; I-40 in Sanders. The highways travel concurrently to Chambers.; US 160 south-southeast of Mexican Water. The highways travel concurrently to southeast of Mexican Water.
Utah: US 163 in Bluff; US 491 in Monticello; I-70 / US 6 / US 50 west-southwest of Thompson Springs. I-70/US 50/US 191 travels concurrently to west of Green River. US 6/US 191 travels concurrently to north of Helper.; US 40 in Duchesne. The highways travel concurrently to Vernal.
Wyoming: I-80 / US 30 in Purple Sage. The highways travel concurrently to Rock Springs.; US 189 north of Daniel. The highways travel concurrently to Jackson.; US 26 / US 89 in Hoback Junction. US 26/US 191 travels concurrently to Moran. US 89/US 191 travels concurrently to the South Entrance to Yellowstone National Park.; US 26 / US 287 in Moran. US 191/US 287 travels concurrently to the South Entrance to Yellowstone National Park.

Yellowstone National Park segment (unofficial designation)

US 89 travels concurrently from the park's South Entrance to north-northwest of West Thumb.

US 287 travels concurrently from the park's South Entrance to the park's West Entrance.

US 14 / US 16 / US 20 in West Thumb. US 20/US 191 travels concurrently to the park's West Entrance.

Northern segment

Montana: US 20 / US 287 from the West Entrance to Yellowstone National Park; the highways travel concurrently to West Yellowstone.
Wyoming: No major intersections
Montana: I-90 in Bozeman. The highways travel concurrently to southwest of Big Timber.; US 89 in Livingston. The highways travel concurrently to northeast of Livingston.; US 12 in Harlowton. The highways travel concurrently to east of Harlowton.; US 87 west-northwest of Moore. The highways travel concurrently to Lewistown.; US 2 in Malta. The highways travel concurrently through Malta.; Highway 4 at the Canada–United States border north-northeast of Loring

^[18]

References

^ ^a ^b ^c ^d ^e ^f Roadway Inventory Management Section, Multimodal Planning Division (December 31, 2013). "2013 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved May 27, 2020.
^ ^a ^b ^c "Highway Reference Online - US-191". maps.udot.utah.gov. Utah Department of Transportation. Retrieved March 16, 2023.
^ ^a ^b ^c "Mantanence Section Reference Book" (PDF). Wyoming Department of Transportation. 2017. Retrieved March 16, 2023.
^ ^a ^b ^c Road Inventory and Mapping Section (2013). Montana Road Log (PDF). Helena: Montana Department of Transportation. pp. 41, 90–93, 96–97, 103–107, 159, 181–182, 208. Archived from the original (PDF) on January 1, 2020. Retrieved November 27, 2020.
^ Does not include mileage within Yellowstone National Park
^ "Map of US 191 in Arizona" (Map). Google Maps. Google. 20 July 2019. Retrieved 20 July 2019.
^ ^a ^b Arizona Department of Transportation (2014). "Arizona Parkways, Historic and Scenic Roads" (PDF). Phoenix: Arizona Department of Transportation. Retrieved September 11, 2018.
^ ^a ^b Arizona State Transportation Board Meeting Agenda (PDF) (Report). Show Low, Arizona: Arizona State Transportation Board. July 20, 2018. pp. 310 to 339. Retrieved June 16, 2019.
^ Staff. "ADOT Right-of-Way Resolution 1992-09-A-064". Arizona Department of Transportation. Retrieved July 22, 2019. Redesignate, renumber or eliminate portions of U.S. 666, B-666 and T-666 from Douglas to Sanders.
^ "Gallatin Way Now U.S. Highway 191". The Helena Daily Independent. February 2, 1935. p. 6. Retrieved February 21, 2020 – via Newspapers.com.
^ Dale Sanderson. "End of US Highway 191". Archived from the original on October 26, 2009. Retrieved 2008-01-05.{{cite web}}: CS1 maint: unfit URL (link)
^ ^a ^b Andy Field and Alex Nitzman. "U.S. Highway 191". AAroads.
^ ^a ^b ^c Special Committee on U.S. Route Numbering (June 25, 1981). "Route Numbering Committee Agenda" (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 526–527. Retrieved June 15, 2023 – via Wikisource. Extend U.S. Route 191 from the present terminus at the intersection of U.S. Route 287 north of West Yellowstone to the Wyoming State Line, then southeasterly over present U.S. Route 287 to the intersection of U.S. Route 187 at Moran, Wyoming, then southeasterly over U.S. Route 187 to the intersection of I-80 at Rock Springs, then westerly over I-80 to the intersection of SR 373 west of Rock Springs, then southerly over SR 260 to the intersection of SR 44, then southerly over SR 44 to the intersection of U.S. 40 at Vernal, Utah, then westerly over U.S. 40 to the intersection of SR 33 at Duchesne, then southwesterly over SR 33 to the intersection of U.S. Route 6 north of Helper, then southeasterly over U.S. Route 6 to the intersection of U.S. Route 163 at Crescent Jct., then southeasterly over U.S. Route 163 to the intersection of a route to be added to the Utah State Route System at Bluff, then southerly over this route to the Arizona State Line and the intersection of U.S. Route 160 near Mexican Water, Arizona, then westerly over U.S. Route 160 to the intersection of SR 63, then southerly over SR 63 to a new terminus at Chambers, Arizona.
^ Photogrammetry and Mapping Services (1981). Official Road Map of Arizona (PDF) (Map). 1:1013760. Phoenix: Arizona Department of Transportation. Retrieved June 16, 2023 – via ADOT Official Website.
^ Photogrammetry and Mapping Services (1981). Official Road Map of Arizona (PDF) (Map). 1:1013760. Phoenix: Arizona Department of Transportation. Retrieved June 16, 2023 – via ADOT Official Website.
^ Rookhuyzen, David (October 31, 2019). "Throwback Thursday: This photo has us bedeviled". Arizona Department of Transportation Website. Retrieved June 15, 2023.
^ ^a ^b Weingroff, Richard F. (June 18, 2003). "US 666: Beast of a Highway?". Highway History. Federal Highway Administration. Retrieved June 15, 2023.
^ Rand McNally (2014). The Road Atlas (Walmart ed.). Chicago: Rand McNally. pp. 8–9, 60–61, 102–103, 116. ISBN 978-0-528-00771-2.

External links

KML file (edit • help)

Template:Attached KML/U.S. Route 191

KML is not from Wikidata

Endpoints of US 191

Browse numbered routes
← SR 189	AZ	→ SR 195
← WYO 190	WY	→ WYO 191
← MT 141	MT	→ MT 200
← WYO 372	WY	→ WYO 374

[ADOTmiles-1] ^ ^a ^b ^c ^d ^e ^f Roadway Inventory Management Section, Multimodal Planning Division (December 31, 2013). "2013 State Highway System Log" (PDF). Arizona Department of Transportation. Retrieved May 27, 2020.

[UDOTmiles-2] "Highway Reference Online - US-191". maps.udot.utah.gov. Utah Department of Transportation. Retrieved March 16, 2023.

[Wyodotmiles-3] "Mantanence Section Reference Book" (PDF). Wyoming Department of Transportation. 2017. Retrieved March 16, 2023.

[MDT-4] Road Inventory and Mapping Section (2013). Montana Road Log (PDF). Helena: Montana Department of Transportation. pp. 41, 90–93, 96–97, 103–107, 159, 181–182, 208. Archived from the original (PDF) on January 1, 2020. Retrieved November 27, 2020.

[5] Does not include mileage within Yellowstone National Park

[US_191_Arizona_Map-6] "Map of US 191 in Arizona" (Map). Google Maps. Google. 20 July 2019. Retrieved 20 July 2019.

[Parkways-7] Arizona Department of Transportation (2014). "Arizona Parkways, Historic and Scenic Roads" (PDF). Phoenix: Arizona Department of Transportation. Retrieved September 11, 2018.

[ASTB_Agenda-8] Arizona State Transportation Board Meeting Agenda (PDF) (Report). Show Low, Arizona: Arizona State Transportation Board. July 20, 2018. pp. 310 to 339. Retrieved June 16, 2019.

[Res_1992-9] Staff. "ADOT Right-of-Way Resolution 1992-09-A-064". Arizona Department of Transportation. Retrieved July 22, 2019. Redesignate, renumber or eliminate portions of U.S. 666, B-666 and T-666 from Douglas to Sanders.

[10] "Gallatin Way Now U.S. Highway 191". The Helena Daily Independent. February 2, 1935. p. 6. Retrieved February 21, 2020 – via Newspapers.com.

[mapguy-11] Dale Sanderson. "End of US Highway 191". Archived from the original on October 26, 2009. Retrieved 2008-01-05.{{cite web}}: CS1 maint: unfit URL (link)

[rockmountainroads-12] Andy Field and Alex Nitzman. "U.S. Highway 191". AAroads.

[AASHTO_1981-13] Special Committee on U.S. Route Numbering (June 25, 1981). "Route Numbering Committee Agenda" (Report). Washington, DC: American Association of State Highway and Transportation Officials. p. 526–527. Retrieved June 15, 2023 – via Wikisource. Extend U.S. Route 191 from the present terminus at the intersection of U.S. Route 287 north of West Yellowstone to the Wyoming State Line, then southeasterly over present U.S. Route 287 to the intersection of U.S. Route 187 at Moran, Wyoming, then southeasterly over U.S. Route 187 to the intersection of I-80 at Rock Springs, then westerly over I-80 to the intersection of SR 373 west of Rock Springs, then southerly over SR 260 to the intersection of SR 44, then southerly over SR 44 to the intersection of U.S. 40 at Vernal, Utah, then westerly over U.S. 40 to the intersection of SR 33 at Duchesne, then southwesterly over SR 33 to the intersection of U.S. Route 6 north of Helper, then southeasterly over U.S. Route 6 to the intersection of U.S. Route 163 at Crescent Jct., then southeasterly over U.S. Route 163 to the intersection of a route to be added to the Utah State Route System at Bluff, then southerly over this route to the Arizona State Line and the intersection of U.S. Route 160 near Mexican Water, Arizona, then westerly over U.S. Route 160 to the intersection of SR 63, then southerly over SR 63 to a new terminus at Chambers, Arizona.

[14] Photogrammetry and Mapping Services (1981). Official Road Map of Arizona (PDF) (Map). 1:1013760. Phoenix: Arizona Department of Transportation. Retrieved June 16, 2023 – via ADOT Official Website.

[15] Photogrammetry and Mapping Services (1981). Official Road Map of Arizona (PDF) (Map). 1:1013760. Phoenix: Arizona Department of Transportation. Retrieved June 16, 2023 – via ADOT Official Website.

[16] Rookhuyzen, David (October 31, 2019). "Throwback Thursday: This photo has us bedeviled". Arizona Department of Transportation Website. Retrieved June 15, 2023.

[beastofahighway-17] Weingroff, Richard F. (June 18, 2003). "US 666: Beast of a Highway?". Highway History. Federal Highway Administration. Retrieved June 15, 2023.

[randmcnally-18] Rand McNally (2014). The Road Atlas (Walmart ed.). Chicago: Rand McNally. pp. 8–9, 60–61, 102–103, 116. ISBN 978-0-528-00771-2.

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@@ Line 1: / Line 1: @@
+{{Short description|Numbered Highway in the United States}}
-{{refimprove|date=January 2015}}
+{{more citations needed|date=January 2015}}
 {{Infobox road
 |country=USA
 |type=US
 |route=191
+|map={{maplink-road|frame-height=290|from=U.S. Route 191.map}}
-|map=US 191 map.svg
+|map_custom=yes
+|map_notes=US 191 highlighted in red
 |spur_type=US
 |spur_of=91
-|length_mi=1623.97
+|length_mi=1544.54
+|length_ref=<ref name=ADOTmiles>{{ADOT log|year= 2013|accessdate=May 27, 2020}}</ref><ref name=UDOTmiles>{{UDOT Reference Info |route=US-191 |access-date=March 16, 2023}}</ref><ref name=Wyodotmiles>{{cite web |url=https://www.dot.state.wy.us/files/live/sites/wydot/files/shared/Maintenance/Maintenance%20Section%20Reference%20Book/2017-MaintenanceSectionReferenceBook.pdf |publisher=[[Wyoming Department of Transportation]] |title=Mantanence Section Reference Book |year=2017 |access-date=March 16, 2023}}</ref><ref name=MDT>{{cite book |author = Road Inventory and Mapping Section |title = Montana Road Log |date = 2013 |publisher = [[Montana Department of Transportation]] |location = Helena |pages = 41, 90–93, 96–97, 103–107, 159, 181–182, 208 |url = http://www.mdt.mt.gov/publications/docs/brochures/2013_roadlog.pdf |access-date = November 27, 2020 |archive-url = https://web.archive.org/web/20200101223835/http://www.mdt.mt.gov/publications/docs/brochures/2013_roadlog.pdf |archive-date = January 1, 2020 }}</ref>
-|length_ref=<ref name="DeLorme">[[DeLorme]] Street Atlas USA 2007, Toggle Measure Tool for [[Montana]] and Driving directions for the rest. Retrieved on 2007-06-09.</ref>
 |established=1926
 |direction_a=South
-|terminus_a={{Jct|state=AZ|AZ|80|US-Hist|80}} in [[Douglas, Arizona|Douglas, Ariz.]]
+|terminus_a={{Jct|state=AZ|SR|80}} in [[Douglas, Arizona|Douglas, AZ]]
 |junction={{plainlist|
-*{{Jct|state=AZ|I|10}} in [[Willcox, Arizona|Willcox, Ariz.]]
+*{{Jct|state=AZ|I|10}} in [[Willcox, Arizona|Willcox, AZ]]
-*{{Jct|state=AZ|I|40}} in [[Sanders, Arizona|Sanders, Ariz.]]
+*{{Jct|state=AZ|I|40}} in [[Sanders, Arizona|Sanders, AZ]]
-*{{Jct|state=UT|US|491}} in [[Monticello, Utah]]
+*{{Jct|state=UT|US|491}} in [[Monticello, Utah|Monticello, UT]]
-*{{Jct|state=UT|I|70|US|6|US|50}} by [[Green River, Utah]]
+*{{Jct|state=UT|I|70|US|6|US|50}} by [[Green River, Utah|Green River, UT]]
-*{{Jct|state=UT|US|6}} in [[Price, Utah]]
+*{{Jct|state=UT|US|6}} in [[Price, Utah|Price, UT]]
-*{{Jct|state=UT|US|40}} in [[Duchesne, Utah|Duchesne]] and [[Vernal, Utah]]
+*{{Jct|state=UT|US|40}} in [[Duchesne, Utah|Duchesne]] and [[Vernal, Utah|Vernal, UT]]
-*{{Jct|state=WY|I|80|US|30}} in [[Rock Springs, Wyoming|Rock Springs, Wyo.]]
+*{{Jct|state=WY|I|80|US|30}} in [[Rock Springs, Wyoming|Rock Springs, WY]]
 *{{Jct|state=WY|US|14|US|16|US|20}} in [[Yellowstone National Park|Yellowstone Nat'l. Park]]
-*{{Jct|state=MT|I|90}} in [[Bozeman, Montana|Bozeman, Mont.]]
+*{{Jct|state=MT|I|90}} in [[Bozeman, Montana|Bozeman, MT]]
-*{{Jct|state=MT|US|2}} in [[Malta, Montana|Malta, Mont.]]
+*{{Jct|state=MT|US|2}} in [[Malta, Montana|Malta, MT]]
 }}
 |direction_b=North
-|terminus_b={{Jct|state=SK|Hwy|4}} at [[Canada–United States border|Canada–US border]] near [[Loring, Montana|Loring, Mont.]]
+|terminus_b={{Jct|state=SK|Hwy|4}} at [[Canada–United States border|Canada–US border]] near [[Loring, Montana|Loring, MT]]
 |states=[[Arizona]], [[Utah]], [[Wyoming]], [[Montana]]
 |browse='''[[National Forest Scenic Byway]]'''
@@ Line 32: / Line 36: @@
 [[File:US 191.jpg|thumb|250px|US 191 north of [[Blanding, Utah]]]]
-'''U.S. Route 191''' ('''US 191''') is a spur of [[U.S. Route 91]] that has two branches. The southern branch runs for {{convert|1465|mi}} from [[Douglas, Arizona]] on the [[U.S.-Mexico border|Mexican border]] to the southern part of [[Yellowstone National Park]]. The northern branch runs for {{convert|440|mi}} from the northern part of Yellowstone National Park to [[Loring, Montana]], at the [[Canada–United States border|Canada–US border]]. Unnumbered roads within Yellowstone National Park connect the two branches. The highway passes through the states of [[Arizona]], [[Utah]], [[Wyoming]], and [[Montana]].
+'''U.S. Route 191''' ('''US 191''') is a north–south highway in the Western United States and a spur of parent route [[U.S. Route 91]] that has two segments. The southern segment runs for {{convert|1102|mi}} from [[Douglas, Arizona]] on the [[U.S.-Mexico border|Mexican border]] to the southern part of [[Yellowstone National Park]].<ref name=ADOTmiles/><ref name=UDOTmiles/><ref name=Wyodotmiles/> The northern segment runs for {{convert|442|mi}} from the northern part of Yellowstone National Park to [[Loring, Montana]], at the [[Canada–United States border|Canada–US&nbsp;border]].<ref name=MDT/> Unnumbered roads within Yellowstone National Park connect the two segments. The highway passes through the states of [[Arizona]], [[Utah]], [[Wyoming]], and [[Montana]].
-The highway was designated in 1926 and its routing has changed drastically through the years. The modern US 191 bears almost no resemblance to the original route, which was primarily in the state of [[Idaho]]. Most of the current route of US 191 was formed in 1981. Since the extensions in the 1980s and 1990s, U.S. Route 191 is much longer than its parent route which it no longer connects to, and one of the longest U.S. three-digit routes.
+The highway was designated in 1926 and its routing has changed drastically through the years. The modern US 191 bears almost no resemblance to the original route, which was primarily in the state of [[Idaho]]. Most of the current route of US 191 was formed in 1981. Since the extensions in the 1980s and 1990s, U.S. Route 191 is much longer than its parent route to which it no longer connects, and it is one of the longest U.S. three-digit routes.
 ==Route description==
-{{Lengths table|length_ref=<ref name="DeLorme" />}}
+{{Lengths table|length_ref=<ref>Does not include mileage within Yellowstone National Park</ref><ref name=ADOTmiles/><ref name=UDOTmiles/><ref name=Wyodotmiles/><ref name=MDT/>}}
 |-
+|[[U.S. Route 191 in Arizona|AZ]]
-|AZ
-|{{Convert|491.07|mi|km|disp=table}}
+|{{Convert|516.50|mi|km|disp=table}}
 |-
+|[[U.S. Route 191 in Utah|UT]]
-|UT
-|{{Convert|404.17|mi|km|disp=table}}
+|{{Convert|404.74|mi|km|disp=table}}
 |-
+|WY
-|WY<ref name="WY ref">{{cite web|url=http://www.dot.state.wy.us/FileDownload.jsp?sCode=hompo&sDID=1415660637|title=Reference Marker Book|accessdate=2007-06-09|format=[[Portable Document Format|PDF]]|publisher=[[Wyoming Department of Transportation|WYDOT]]|date=November 2004 |archiveurl = https://web.archive.org/web/20070311005354/http://www.dot.state.wy.us/FileDownload.jsp?sCode=hompo&sDID=1415660637 <!-- Bot retrieved archive --> |archivedate = 2007-03-11}}</ref>
-|{{Convert|290.91|mi|km|disp=table}}
+|{{Convert|181.14|mi|km|disp=table}}
 |-
+|[[U.S. Route 191 in Montana|MT]]
-|MT
-|{{Convert|437.82|mi|km|disp=table}}
+|{{Convert|442.16|mi|km|disp=table}}
 |-class="sortbottom"
 |Total
-|{{Convert|1623.97|mi|km|disp=table}}
+|{{Convert|1544.54|mi|km|disp=table}}
 |-
 |}
 ===Arizona===
+{{Main|U.S. Route 191 in Arizona}}
-US&nbsp;191 begins in [[Cochise County, Arizona]] at a signaled intersection with [[Arizona State Route 80]] (SR&nbsp;80) and [[U.S. Route 80 in Arizona|Historic U.S. Route 80]] (Historic US&nbsp;80) near [[Douglas, Arizona|Douglas]].<ref name="ADOT Highway Log" /> The highway then proceeds north past [[Bisbee Douglas International Airport]] passing through the hamlets of [[Elfrida, Arizona|Elfrida]] and [[McNeal, Arizona|McNeal]]. Near Sunizona, US&nbsp;191 intersects with the western terminus of [[Arizona State Route 181|SR&nbsp;181]]. US&nbsp;191 then curves west for {{convert|7.5|mi|km}} before turning northwest through [[Sunsites, Arizona|Sunsites]] and [[Cochise, Arizona|Cochise]]. US&nbsp;191 intersects [[Interstate 10 in Arizona|Interstate 10]] (I-10) near Cochise at a trumpet interchange (I-10 Exit&nbsp;331). US&nbsp;191 and I-10 run concurrent for {{convert|20.9|mi|km}} around [[Willcox, Arizona|Willcox]]. In Willcox, I-10/US&nbsp;191 serves as the northern terminus for [[Arizona State Route 186|SR&nbsp;186]] at Exit&nbsp;340. The city itself is served by the [[Interstate 10 Business (Willcox, Arizona)|Willcox I-10 Business Loop]], which begins and ends at I-10/US&nbsp;191 southwest and northeast of the city. In Bowie Junction at Exit&nbsp;352, US&nbsp;191 leaves I-10 and heads north, exiting Cochise County and entering [[Graham County, Arizona|Graham County]].<ref name="US 191 Arizona Map">{{Google maps|url=https://www.google.com/maps/dir/31.3522741,-109.5794683/36.9983783,-109.6090764/@34.1514232,-111.6861722,7.16z/data=!4m14!4m13!1m10!3m4!1m2!1d-109.9135676!2d32.1047743!3s0x86d77484bd8171a7:0x845480a51ac4641b!3m4!1m2!1d-109.3412551!2d33.6054577!3s0x8727cdb903fd23ef:0x18af4f7533ab64d0!1m0!3e0 |title=Map of US 191 in Arizona |access-date=20 July 2019}}</ref> US&nbsp;191 has a {{convert|10|mi|km|spell=in|adj=on}} overlay with [[U.S. Route 70 in Arizona|US&nbsp;70]] east of [[Safford, Arizona|Safford]]. The route links to [[Arizona State Route 366|State Route 366]] (SR&nbsp;366) and [[Arizona State Route 266|SR&nbsp;266]] to the south of Safford.  The route between [[Springerville, Arizona|Springerville]] and [[Morenci, Arizona|Morenci]] was designated a [[National Scenic Byway]] and given the name of '''Coronado Trail Scenic Byway''', as this approximates the path taken by [[Francisco Vásquez de Coronado]] between 1540 and 1542.<ref name="Parkways" /> This is a very dangerous mountain road with many sharp curves and little or no shoulders on steep cliffs. North of the byway, the highway is the primary route to access [[Canyon de Chelly National Monument]]. US&nbsp;191 traverses the [[Navajo Nation]] before entering Utah.<ref name="ADOT Highway Log" /><ref name="ASTB Agenda" />
+US&nbsp;191 begins in [[Cochise County, Arizona]] at a signaled intersection with [[Arizona State Route 80]] (SR&nbsp;80) and [[U.S. Route 80 in Arizona|Historic U.S. Route 80]] (Historic US&nbsp;80) near [[Douglas, Arizona|Douglas]].<ref name=ADOTmiles/> The highway then proceeds north past [[Bisbee Douglas International Airport]] passing through the hamlets of [[Elfrida, Arizona|Elfrida]] and [[McNeal, Arizona|McNeal]]. Near Sunizona, US&nbsp;191 intersects with the western terminus of [[Arizona State Route 181|SR&nbsp;181]]. US&nbsp;191 then curves west for {{convert|7.5|mi|km}} before turning northwest through [[Sunsites, Arizona|Sunsites]] and [[Cochise, Arizona|Cochise]]. US&nbsp;191 intersects [[Interstate 10 in Arizona|Interstate 10]] (I-10) near Cochise at a trumpet interchange (I-10 Exit&nbsp;331). US&nbsp;191 and I-10 run concurrent for {{convert|20.9|mi|km}} around [[Willcox, Arizona|Willcox]]. In Willcox, I-10/US&nbsp;191 serves as the northern terminus for [[Arizona State Route 186|SR&nbsp;186]] at Exit&nbsp;340. The city itself is served by the [[Interstate 10 Business (Willcox, Arizona)|Willcox I-10 Business Loop]], which begins and ends at I-10/US&nbsp;191 southwest and northeast of the city. In Bowie Junction at Exit&nbsp;352, US&nbsp;191 leaves I-10 and heads north, exiting Cochise County and entering [[Graham County, Arizona|Graham County]].<ref name="US 191 Arizona Map">{{Google maps|url=https://www.google.com/maps/dir/31.3522741,-109.5794683/36.9983783,-109.6090764/@34.1514232,-111.6861722,7.16z/data=!4m14!4m13!1m10!3m4!1m2!1d-109.9135676!2d32.1047743!3s0x86d77484bd8171a7:0x845480a51ac4641b!3m4!1m2!1d-109.3412551!2d33.6054577!3s0x8727cdb903fd23ef:0x18af4f7533ab64d0!1m0!3e0 |title=Map of US 191 in Arizona |access-date=20 July 2019}}</ref> US&nbsp;191 has a {{convert|10|mi|km|spell=in|adj=on}} overlay with [[U.S. Route 70 in Arizona|US&nbsp;70]] east of [[Safford, Arizona|Safford]]. The route links to [[Arizona State Route 366|State Route 366]] (SR&nbsp;366) and [[Arizona State Route 266|SR&nbsp;266]] to the south of Safford.  The route between [[Springerville, Arizona|Springerville]] and [[Morenci, Arizona|Morenci]] was designated a [[National Scenic Byway]] and given the name of '''Coronado Trail Scenic Byway''', as this approximates the path taken by [[Francisco Vásquez de Coronado]] between 1540 and 1542.<ref name="Parkways" /> This is a very dangerous mountain road with many sharp curves and little or no shoulders on steep cliffs. North of the byway, the highway is the primary route to access [[Canyon de Chelly National Monument]]. US&nbsp;191 traverses the [[Navajo Nation]] before entering Utah.<ref name=ADOTmiles/><ref name="ASTB Agenda">{{Cite report |url=http://aztransportationboard.gov/downloads/2018-072018-Agenda.pdf |title=Arizona State Transportation Board Meeting Agenda |date=July 20, 2018 |publisher=Arizona State Transportation Board |location=Show Low, Arizona |pages=310 to 339 |access-date=June 16, 2019}}</ref>
-US&nbsp;191 has a detached business route in Arizona, running from [[State Route 80 (Arizona)|SR&nbsp;80]]/[[U.S. Route 80 in Arizona|Historic US&nbsp;80]] in Douglas, along Pan American Ave to the US Customs/Immigration Port of Entry at the border with Mexico.<ref name="ADOT Highway Log" /><ref name="ASTB Agenda" /> The portion of this route between its intersection with SR&nbsp;80 near Douglas and the intersection with Interstate 40 at Sanders was formerly the major Arizona portion of US&nbsp;666.<ref name="Res 1992" /> Part of US 191 through the Navajo Nation is designated by the [[Arizona Department of Transportation]] as the '''Tse'nikani Flat Mesa Rock Scenic Road'''.<ref name="Parkways">{{cite web |author = Arizona Department of Transportation |year = 2014 |url = https://www.azdot.gov/docs/default-source/scenic-routes/general_information_list_of_scenic_roads.pdf |title = Arizona Parkways, Historic and Scenic Roads |location = Phoenix |publisher = Arizona Department of Transportation |access-date = September 11, 2018 }}</ref>
+US&nbsp;191 has a detached business route in Arizona, running from [[State Route 80 (Arizona)|SR&nbsp;80]]/[[U.S. Route 80 in Arizona|Historic US&nbsp;80]] in Douglas, along Pan American Ave to the US Customs/Immigration Port of Entry at the border with Mexico.<ref name=ADOTmiles/><ref name="ASTB Agenda" /> The portion of this route between its intersection with SR&nbsp;80 near Douglas and the intersection with Interstate 40 at Sanders was formerly the major Arizona portion of US&nbsp;666.<ref name="Res 1992">{{cite web |author = Staff |publisher = Arizona Department of Transportation |access-date = July 22, 2019 |url = http://azhighwaydata.com/resolutions/?resnum=1992-09-A-064 |title = ADOT Right-of-Way Resolution 1992-09-A-064 |quote=Redesignate, renumber or eliminate portions of U.S. 666, B-666 and T-666 from Douglas to Sanders. }}</ref> Part of US 191 through the Navajo Nation is designated by the [[Arizona Department of Transportation]] as the '''Tse'nikani Flat Mesa Rock Scenic Road'''.<ref name="Parkways">{{cite web |author = Arizona Department of Transportation |year = 2014 |url = https://www.azdot.gov/docs/default-source/scenic-routes/general_information_list_of_scenic_roads.pdf |title = Arizona Parkways, Historic and Scenic Roads |location = Phoenix |publisher = Arizona Department of Transportation |access-date = September 11, 2018 }}</ref>
 ===Utah===
-{{Main article|U.S. Route 191 in Utah}}
+{{Main|U.S. Route 191 in Utah}}
-US 191 serves the eastern half of the state. The road enters Utah in a remote portion of the [[Navajo Nation]]. The highway passes through mostly desolate areas of eastern [[Utah]]. Several portions are [[National Scenic Byway|National]] or [[Utah Scenic Byway]]s. It passes through [[Bluff, Utah|Bluff]], [[Blanding, Utah|Blanding]], [[Monticello, Utah|Monticello]] (the seat of [[San Juan County, Utah|San Juan County]]), and [[Moab, Utah|Moab]], the largest city in southeastern Utah and the seat of [[Grand County, Utah|Grand County]]. In addition to linking many rural towns in Utah to [[Interstate 70 (Utah)|I-70]] and [[U.S. Route 40 (Utah)|US 40]], the highway served to interconnect several national and state parks for tourism, namely [[Canyonlands National Park]], [[Arches National Park]], [[Bears Ears National Monument]], and [[Dead Horse Point State Park]]. The highway exits Utah just after crossing the [[Flaming Gorge Reservoir]].
+US 191 serves the eastern half of the state. The road enters Utah in a remote portion of the [[Navajo Nation]]. The highway passes through mostly desolate areas of eastern [[Utah]]. Several portions are [[National Scenic Byway|National]] or [[Utah Scenic Byway]]s. It passes through [[Bluff, Utah|Bluff]], [[Blanding, Utah|Blanding]], [[Monticello, Utah|Monticello]] (the seat of [[San Juan County, Utah|San Juan County]]), and [[Moab, Utah|Moab]], the largest city in southeastern Utah and the seat of [[Grand County, Utah|Grand County]]. It connects with U.S. Route 6 and 50 (temp)as it joins Interstate 70 going due west through the town and crossing the major river at Green river, home to the John Wesley Powell Museum. A few miles out of town it splits off I-70 and continues north between the San Rafael Reef to the west and Book cliffs to the east through Emery County.  It then enters the historic coalfields of Carbon County, passing through Wellington, Price, largest city in Eastern Utah home to the USU Eastern Prehistoric museum, and  historic Helper, the main stop for Amtrak between Provo Ut and Grand Jct. Colorado.In addition to linking many rural towns in Utah to [[Interstate 70 (Utah)|I-70]] and [[U.S. Route 40 (Utah)|US 40]], the highway served to interconnect several national and state parks for tourism, namely [[Canyonlands National Park]], [[Arches National Park]], [[Bears Ears National Monument]], and [[Dead Horse Point State Park]]. The highway exits Utah just after crossing the [[Flaming Gorge Reservoir]].
 ===Wyoming===
@@ Line 70: / Line 75: @@
 The route is then [[concurrency (road)|concurrent]] with Interstate 80 eastward for approximately {{convert|5|mi|spell=in}}, passing just north of Rock Springs. US 191 diverges northward at Exit 104, following the former route of [[U.S. Highway 187 (Wyoming)|US 187]]. Traveling through high desert country, the route passes through [[Eden, Wyoming|Eden]], [[Farson, Wyoming|Farson]], and [[Pinedale, Wyoming|Pinedale]] before meeting [[U.S. Highway 189 (Wyoming)|US 189]] at Daniel Junction. Continuing north, the road traverses increasingly mountainous terrain, entering the [[Bridger-Teton National Forest]] and passing through the small community of [[Bondurant, Wyoming|Bondurant]] before descending through the narrow Hoback River Canyon to an intersection with [[U.S. Highway 26 (Wyoming)|US 26]] and [[U.S. Highway 89 (Wyoming)|US 89]] at Hoback Junction. The route then follows the [[Snake River]] valley northward to [[Jackson, Wyoming|Jackson]]. US 191 is concurrent with US 189 between Daniel Junction and Jackson, and with US 26 and US 89 between Hoback Junction and Jackson.
-North of Jackson, US 191 soon enters [[Grand Teton National Park]], running concurrently with US 26 and US 89. The highway meets [[U.S. Highway 287 (Wyoming)|US 287]] at Moran Junction, inside the park; US 191, US 89, and US 287 are concurrent north of Moran, but the highways are not signed. Continuing through forested, mountainous country, the route passes through the [[John D. Rockefeller, Jr. Memorial Parkway]], and then from [[Yellowstone National Park]]'s South Entrance to the state line, the route is unsigned. No official routing of US 191 through Yellowstone has been designated as of 2016.
+North of Jackson, US 191 soon enters [[Grand Teton National Park]], running concurrently with US 26 and US 89. The highway meets [[U.S. Highway 287 (Wyoming)|US 287]] at Moran Junction, inside the park; US 191, US 89, and US 287 are concurrent north of Moran, but the highways are not signed. Continuing through forested, mountainous country, the route passes through the [[John D. Rockefeller Jr. Memorial Parkway]] before ending at the South Entrance of [[Yellowstone National Park]]. While US 191 and other U.S. Routes are officially discontinuous through the park, some commercially produced maps show these highways running inside Yellowstone National Park itself along its unnumbered roads and across the Wyoming–Montana state line.
 ===Montana===
+{{Main|U.S. Route 191 in Montana}}
 US 191 in Montana begins at the West Entrance to Yellowstone National Park, at the edge of the town of [[West Yellowstone, MT|West Yellowstone]]. The highway heads north, running concurrently with US 287 for {{convert|8|mi|spell=in}} before veering slightly east and entering Yellowstone. US 191 continues northward through Yellowstone, traversing forested, mountainous terrain and briefly looping into the state of Wyoming, before leaving the park in the upper reaches of the [[Gallatin River]] canyon. The route travels northward through the narrow canyon, past the resort community of [[Big Sky, Montana|Big Sky]], then entering the Gallatin Valley near the town of [[Gallatin Gateway, Montana]]. US 191 travels north and east through the valley to the city of [[Bozeman, MT|Bozeman]], which is the largest city along the entire US 191 route.
@@ Line 81: / Line 87: @@
 ==History==
 ===Background===
-The routing of US 191 has drastically changed through the years having been extended and shortened several times.  The original route designated in 1926 ran from [[Idaho Falls, Idaho]], to [[West Yellowstone, Montana]] along the route now numbered [[U.S. Route 20]].  West Yellowstone is the only town that has been continuously served by the highway since its commissioning.  As US 191 has mostly been extended while US 91 has largely been truncated, US 191 is now ten times longer than its parent.
+The routing of US&nbsp;191 has drastically changed through the years having been extended and shortened several times.  The original route designated in 1926 ran from [[Idaho Falls, Idaho]], to [[West Yellowstone, Montana]] along the route now numbered [[U.S. Route 20]].  West Yellowstone is the only town that has been continuously served by the highway since its commissioning. On February&nbsp;1, 1935, US&nbsp;191 was extended over Montana Highway 187 (also known as the Gallatin Way) to [[Bozeman, Montana]].<ref>{{cite news |title=Gallatin Way Now U.S. Highway 191 |url=https://www.newspapers.com/clip/45347634/us_191_mt_february_2_1935/ |access-date=February 21, 2020 |work=The Helena Daily Independent |date=February 2, 1935 |page=6|via=Newspapers.com}} {{open access}}</ref>
-At one time US&nbsp;191 connected to its parent, [[U.S. Route 91|US&nbsp;91]], twice: at [[Idaho Falls, Idaho]] and [[Brigham City, Utah]].  Today the highway does not connect to its parent, or even enter Idaho.  In Utah, there have been 2 completely different iterations of U.S. 191 serving different areas of the state.  The original iteration is now [[Utah State Route 13|State Route 13]], which is mostly a [[frontage road]] for [[Interstate 15 in Utah|Interstate 15]].<ref name=mapguy>{{cite web|url=http://www.geocities.com/usend9099/End191/end191.htm |title=End of US Highway 191 |author=Dale Sanderson |accessdate=2008-01-05 |archiveurl=https://web.archive.org/web/20091026232858/http://www.geocities.com/usend9099/End191/end191.htm |archivedate=October 26, 2009 |deadurl=unfit }}</ref>
+At one time US&nbsp;191 connected to its parent, [[U.S. Route 91|US&nbsp;91]], twice: at [[Idaho Falls, Idaho]] and [[Brigham City, Utah]].  Today the highway does not connect to its parent, or even enter Idaho.  In Utah, there have been 2 completely different iterations of U.S. 191 serving different areas of the state.  The original iteration is now [[Utah State Route 13|State Route 13]], which is mostly a [[frontage road]] for [[Interstate 15 in Utah|Interstate 15]].<ref name=mapguy>{{cite web|url=http://www.geocities.com/usend9099/End191/end191.htm |title=End of US Highway 191 |author=Dale Sanderson |access-date=2008-01-05 |archive-url=https://web.archive.org/web/20091026232858/http://www.geocities.com/usend9099/End191/end191.htm |archive-date=October 26, 2009 |url-status=unfit }}</ref>  In this alignment, the route in between Idaho Falls and the Utah line also paralleled I-15. As US&nbsp;191 has mostly been extended while US&nbsp;91 has largely been truncated, US&nbsp;191 is now ten times longer than its parent.
 ===1981 extension===
@@ Line 93: / Line 99: @@
 |title = U.S. Highway 191
 |publisher = AAroads
+}}</ref> Most of the southern extension recycled existing U.S. and state highways. However, some new sections were constructed. When the 1981 extension was finished, US&nbsp;191 reached [[Interstate 40]] in Arizona.<ref name="AASHTO 1981">{{AASHTO minutes |year=1981S |page=526–527 |access-date=June 15, 2023 |v-link=yes |quote=Extend U.S. Route 191 from the present terminus at the intersection of U.S. Route 287 north of West Yellowstone to the Wyoming State Line, then southeasterly over present U.S. Route 287 to the intersection of U.S. Route 187 at Moran, Wyoming, then southeasterly over U.S. Route 187 to the intersection of I-80 at Rock Springs, then westerly over I-80 to the intersection of SR&nbsp;373 west of Rock Springs, then southerly over SR&nbsp;260 to the intersection of SR&nbsp;44, then southerly over SR&nbsp;44 to the intersection of U.S. 40 at Vernal, Utah, then westerly over U.S. 40 to the intersection of SR&nbsp;33 at Duchesne, then southwesterly over SR&nbsp;33 to the intersection of U.S. Route 6 north of Helper, then southeasterly over U.S. Route 6 to the intersection of U.S. Route 163 at Crescent Jct., then southeasterly over U.S. Route 163 to the intersection of a route to be added to the Utah State Route System at Bluff, then southerly over this route to the Arizona State Line and the intersection of U.S. Route 160 near Mexican Water, Arizona, then westerly over U.S. Route 160 to the intersection of SR&nbsp;63, then southerly over SR&nbsp;63 to a new terminus at Chambers, Arizona.}}</ref>
-}}</ref> Most of the southern extension recycled existing U.S. and state highways. However, some new sections were constructed. When the 1981 extension was finished, US&nbsp;191 reached [[Interstate 40]] in Arizona.
-In Wyoming, the new US 191 absorbed what was '''U.S. Route 187''', formed in 1926 as a branch from [[U.S. Route 87W|US 87W]] (now [[US 287 (WY)|US 287]]) at [[Jackson Lake Junction, Wyoming]] south to [[US 30 (WY)|US 30]] in [[Rock Springs, WY|Rock Springs]]. Although it became part of US 191 in 1981, the [[American Association of State Highway and Transportation Officials]] still lists it in their latest log (1989), with a short independent section in Rock Springs between former US 30 (now [[U.S. Route 30 Business (Rock Springs, Wyoming)|US 30 Business]]) and [[I-80 (WY)|I-80]].
+In Wyoming, the new US&nbsp;191 absorbed what was '''U.S. Route 187''', formed in 1926 as a branch from [[U.S. Route 87W|US&nbsp;87W]] (now [[US&nbsp;287 (WY)|US&nbsp;287]]) at [[Jackson Lake Junction, Wyoming]] south to [[US 30 (WY)|US&nbsp;30]] in [[Rock Springs, WY|Rock Springs]].<ref name="AASHTO 1981" /> Although it became part of US&nbsp;191 in 1981, the [[American Association of State Highway and Transportation Officials]] still lists it in their latest log (1989), with a short independent section in Rock Springs between former US&nbsp;30 (now [[U.S. Route 30 Business (Rock Springs, Wyoming)|US 30 Business]]) and [[I-80 (WY)|I-80]].
 A combination of new construction and the upgrading of county roads created a more direct route between [[Interstate 80 in Wyoming]] and [[Flaming Gorge Reservoir]].
-Through Utah, US-191 absorbed [[SR-33 (UT)|SR-33]], [[Utah State Route 260 (1957-1981)|SR-260]], and most of [[SR-44 (UT)|SR-44]]. From [[Crescent Junction, Utah|Crescent Junction]] to [[Bluff, Utah|Bluff]] was previously numbered [[U.S. Route 163 (Utah)|U.S. Route 163]], eliminating all but a short segment of that route.
+Through Utah, US-191 absorbed [[SR-33 (UT)|SR-33]], [[Utah State Route 260 (1957-1981)|SR-260]], and most of [[SR-44 (UT)|SR-44]]. From Crescent Junction to [[Bluff, Utah|Bluff]] was previously numbered [[U.S. Route 163 (Utah)|U.S. Route 163]], eliminating all but a short segment of that route.<ref name="AASHTO 1981" /> US&nbsp;191 was extended over BIA Route 12 from [[Bluff, Utah]] to a junction with [[U.S. Route 160]] in Arizona.<ref>{{Cite map|title=Official Road Map of Arizona|year=1981|publisher=[[Arizona Department of Transportation]]|location=Phoenix|author=Photogrammetry and Mapping Services|scale=1:1013760|access-date=June 16, 2023|url=https://azdot.gov/sites/default/files/media/2020/11/AZRoad1981.pdf|via=ADOT Official Website}}</ref> The 1981 extension caused US&nbsp;191 to enter Arizona for the first time in its history, ending at [[Interstate 40|I-40]] in [[Chambers, Arizona]]. Between US&nbsp;160 and I-40 the highway absorbed the route of former [[Arizona State Route 63 (1961–1981)|State Route 63]].<ref>{{Cite map|title=Official Road Map of Arizona|year=1981|publisher=[[Arizona Department of Transportation]]|location=Phoenix|author=Photogrammetry and Mapping Services|scale=1:1013760|access-date=June 16, 2023|url=https://azdot.gov/sites/default/files/media/2020/11/AZRoad1981.pdf|via=ADOT Official Website}}</ref>
-A new route was constructed for US 191 from [[Bluff, Utah]] to a junction with [[U.S. Route 160]] in Arizona.
-The 1981 extension caused US&nbsp;191 to enter Arizona for the first time in its history. Between US&nbsp;160 and I-40 the highway absorbed the route of former [[Arizona State Route 63|State Route 63]].<ref name=hamilton>{{cite web
-|url = http://www.arizonaroads.com/us/us191.html
-|author = Alan H.|title = Arizona Roads
-|accessdate = 2008-01-05}}</ref>
 ===Later extensions===
-In 1992, [[Arizona]] requested a new number for its portion of [[U.S. Route 666|US&nbsp;666]],<ref name=hamilton/> arguing the road signs on this highway were the most frequently stolen in the state. As a result, US&nbsp;191 was extended again to the [[Mexico–United States border|Mexican border]] at [[Douglas, Arizona]]. In 1996, it became the latest U.S. highway to travel from border to border, with the extension from [[Malta, Montana]] to the [[Canada–United States border|Canada–US border]],<ref name=rockmountainroads/> absorbing former '''Montana Secondary Highway&nbsp;242'''. In 2003, [[New Mexico]] asked [[AASHTO]] to renumber its portion of US&nbsp;666. This time, all of then US&nbsp;666 was renumbered [[U.S. Route 491|US&nbsp;491]], the x91 number was decided because the road meets US&nbsp;191 in [[Monticello, Utah]].
+In 1992, [[Arizona]] requested a new number for its portion of [[U.S. Route 666|US&nbsp;666]]. The state wished to remove the US&nbsp;666 designation from within Arizona, due to public concerns relating to the [[Number of the beast|biblical reference to the number "666"]]. A secondary reason given by the state was the constant theft of US&nbsp;666 shields and navigational markers along the highway.<ref>{{Cite web |last=Rookhuyzen |first=David |date=October 31, 2019 |title=Throwback Thursday: This photo has us bedeviled |url=https://azdot.gov/adot-blog/throwback-thursday-photo-has-us-bedeviled |access-date=June 15, 2023 |website=Arizona Department of Transportation Website}}</ref> As a result, US&nbsp;191 was extended over I-40 to [[Sanders, Arizona|Sanders]], where it absorbed the route of US&nbsp;666 from Sanders to the [[Mexico–United States border|Mexican border]] at [[Douglas, Arizona]]. Following the extension of US&nbsp;191, US&nbsp;666 was truncated out of Arizona to I-40 in [[Gallup, New Mexico]].<ref name="beastofahighway">{{cite web |url= http://www.fhwa.dot.gov/infrastructure/us666.cfm |title= US&nbsp;666: Beast of a Highway? |work= Highway History |access-date= June 15, 2023 |last= Weingroff |first=  Richard F. |date= June 18, 2003 |publisher= [[Federal Highway Administration]] }}</ref> In 1996, it became the latest U.S. highway to travel from border to border, with the extension from [[Malta, Montana]] to the [[Canada–United States border|Canada–US border]], absorbing former '''Montana Secondary Highway&nbsp;242'''.<ref name=rockmountainroads/> In 2003, the remainder of US&nbsp;666 between I-40 and US&nbsp;191 in [[Monticello, Utah]] was renumbered [[U.S. Route 491|US&nbsp;491]]. The x91 number was decided because the road meets US&nbsp;191 in Monticello.<ref name="beastofahighway" />
-==Special routes==
-===Douglas business route===
-{{Infobox road small
-|state=AZ
-|type=US
-|subtype=Bus
-|route=191
-|name=U.S. Business Route 191
-|location=[[Douglas, Arizona]]
-|length_mi=1.15
-|length_round=2
-|length_ref=<ref name="ADOT Highway Log">{{cite web |url=https://www.azdot.gov/docs/default-source/planning/2013shslog.pdf |title=2013 ADOT Highway Log |author=[[Arizona Department of Transportation]]|accessdate=June 22, 2019}}</ref>
-|established=1992
-|yr_ref=<ref name="Res 1992">{{cite web |author = Staff |publisher = Arizona Department of Transportation |accessdate = July 22, 2019 |url = http://azhighwaydata.com/resolutions/?resnum=1992-09-A-064 |title = ADOT Right-of-Way Resolution 1992-09-A-064 |quote=Redesignate, renumber or eliminate portions of U.S. 666, B-666 and T-666 from Douglas to Sanders. }}</ref>
-}}
-{{imageframe|width=260|content={{maplink|frame=yes|plain=yes|frame-align=center|frame-width=260|frame-lat=31.342|frame-long=-109.558|zoom=13|type=line|from=U.S. Route 191 Business (Douglas, Arizona).map|stroke-width=3}}|caption=A map of the Douglas business route. The route is highlighted in red.|align=right}}
-'''U.S. Business Route 191 (US&nbsp;191 Bus.)''' is a business loop of US&nbsp;191 located entirely within the city of [[Douglas, Arizona]].<ref name="US 191 Bus Map">{{Google maps|url=https://www.google.com/maps/dir/31.3340866,-109.560231/31.3498855,-109.5549757/@31.3421681,-109.5579637,15.75z |title=Map of US&nbsp;191 Business |access-date=July 22, 2019}}</ref> US&nbsp;191 Bus. is {{convert|1.15|mi|km}} long and acts as the main route into [[Agua Prieta]] in [[Mexico]] via the Douglas Port of Entry at the [[Mexico–United States border]].<ref name="ADOT Highway Log" /><ref name="US 191 Bus Map" /> Despite being a bannered route of US&nbsp;191, US&nbsp;191 Bus. never intersects with its implied parent route and instead ends at [[Arizona State Route 80]] (SR&nbsp;80) and [[U.S. Route 80 in Arizona|Historic US&nbsp;80]] approximately {{convert|1.5|mi|km}} east of the US&nbsp;191 southern terminus.<ref name="US 191 Bus Map" /><ref name="ASTB Agenda" /> The route was previously designated as US&nbsp;666 Bus. until 1992, when US&nbsp;666 and all its bannered routes in Arizona were renumbered to extensions and bannered routes of US&nbsp;191.<ref name="Res 1992" />
-US&nbsp;191 Bus. begins at the Douglas port of entry. Heading northeast, US&nbsp;191 takes on the name Pan American Avenue. The route is lined with several businesses and acts as the western boundary to downtown Douglas. Several large slag piles can be seen from US&nbsp;191 to the west at the former location of the Douglas smelter. A number of warehouses and industrial structures are also located west of the highway. US&nbsp;191 Bus. curves slightly in front of the Douglas Police Station (former train station) before terminating at an intersection with SR&nbsp;80 and Historic US&nbsp;80 16th Street and G Avenue. Westbound SR&nbsp;80 provides a direct connection to US&nbsp;191, which begins just over a mile west of town.<ref name="US 191 Bus Map" /><ref name="ASTB Agenda" />
-;Major intersections
-{{jcttop|state=AZ|county=Cochise|location=Douglas|length_ref=<ref name="ADOT Highway Log"/>|dest_ref=<ref name="ASTB Agenda">{{Cite report |url=http://aztransportationboard.gov/downloads/2018-072018-Agenda.pdf |title=Arizona State Transportation Board Meeting Agenda |date=July 20, 2018 |publisher=Arizona State Transportation Board |location=Show Low, Arizona |pages=310 to 339 |format=PDF|accessdate=June 16, 2019}}</ref>}}
-{{AZint
-|mile=0.00
-|road=Calle Uno to {{jct|state=SON|FH|2|city1=Agua Prieta}}
-|notes=Southern terminus; [[Mexico–United States border]]
-}}
-{{AZint
-|mile=1.15
-|road={{jct|state=AZ|SR|80|US-Hist|80|to3=to|US|191|dir3=north|name2=16th Street/Pan American Avenue/G Street|city1=Bisbee|location2=[[Rodeo, New Mexico]]|city3=Willcox}}
-|notes=Northern terminus; access to US 191 via SR 80
-}}
-{{jctbtm}}
 ==Major intersections==
 ;Southern segment
 :;Arizona
-:: {{jct|state=AZ|AZ|80}} in [[Douglas, Arizona|Douglas]]
+:: {{jct|state=AZ|AZ|80|US-Hist|80}} in [[Douglas, Arizona|Douglas]]
 :: {{jct|country=USA|I|10}} north-northwest of [[Cochise, Arizona|Cochise]]. The highways travel concurrently to northeast of [[Willcox, Arizona|Willcox]].
 :: {{jct|country=USA|US|70}} in [[Safford, Arizona|Safford]]. The highways travel concurrently to [[San Jose, Graham County, Arizona|San Jose]].
@@ Line 162: / Line 128: @@
 :: {{jct|country=USA|I|80|US|30}} in [[Purple Sage, Wyoming|Purple Sage]]. The highways travel concurrently to [[Rock Springs, Wyoming|Rock Springs]].
 :: {{jct|country=USA|US|189}} north of [[Daniel, Wyoming|Daniel]]. The highways travel concurrently to [[Jackson, Wyoming|Jackson]].
-:: {{jct|country=USA|US|26|US|89}} in [[Hoback Junction]]. US&nbsp;26/US&nbsp;191 travels concurrently to [[Moran, Wyoming|Moran]]. US&nbsp;89/US&nbsp;191 travels concurrently to north-northwest of [[West Thumb, Wyoming|West Thumb]].
+:: {{jct|country=USA|US|26|US|89}} in [[Hoback Junction]]. US&nbsp;26/US&nbsp;191 travels concurrently to [[Moran, Wyoming|Moran]]. US&nbsp;89/US&nbsp;191 travels concurrently to the South Entrance to [[Yellowstone National Park]].
-:: {{jct|country=USA|US|26|US|287}} in Moran. US&nbsp;191/US&nbsp;287 travels concurrently to north-northwest of [[West Yellowstone, Montana]].
+:: {{jct|country=USA|US|26|US|287}} in Moran. US&nbsp;191/US&nbsp;287 travels concurrently to the South Entrance to [[Yellowstone National Park]].
-:: {{jct|country=USA|US|20}} north-northwest of West Thumb. The highways travel concurrently to West Yellowstone, Montana
+;Yellowstone National Park segment (unofficial designation)
+:: {{jct|country=USA|US|89}} travels concurrently from the park's South Entrance to north-northwest of [[Grant Village|West Thumb]].
+:: {{jct|country=USA|US|287}} travels concurrently from the park's South Entrance to the park's West Entrance.
+:: {{jct|country=USA|US|14|US|16|US|20}} in West Thumb. US&nbsp;20/US&nbsp;191 travels concurrently to the park's West Entrance.
 ;Northern segment
 :;Montana
+:: {{jct|country=USA|US|20|US|287}} from the West Entrance to Yellowstone National Park; the highways travel concurrently to [[West Yellowstone, Montana|West Yellowstone]].
-:: No major intersections
 :;Wyoming
 :: No major intersections
@@ Line 178: / Line 148: @@
 :: {{jct|country=USA|US|2}} in [[Malta, Montana|Malta]]. The highways travel concurrently through Malta.
 :: {{jct|state=SK|Hwy|4}} at the [[Canada–United States border]] north-northeast of [[Loring, Montana|Loring]]
+<ref name=randmcnally>{{cite book |author = Rand McNally |year = 2014 |title = The Road Atlas |edition = Walmart |location = Chicago |publisher = Rand McNally |pages = 8–9, 60–61, 102–103, 116|isbn = 978-0-528-00771-2}}</ref>
 ==References==
@@ Line 193: / Line 164: @@
 {{wy browse|previous_type=WY|previous_route=372|route=[[File:WY-373.svg|20px]][[State highways in Wyoming|WY]]|next_type=WY|next_route=374}}
 {{s-end}}
+{{Authority control}}
 {{DEFAULTSORT:U.S. Route 91-1}}
-[[Category:United States Numbered Highways|91-1]]
+[[Category:U.S. Route 191]]
+[[Category:United States Numbered Highway System|91-1]]
 [[Category:U.S. Highways in Arizona|91-1]]
-[[Category:U.S. Highways in Wyoming|91-1]]
-[[Category:U.S. Highways in Idaho|91-1]]
 [[Category:U.S. Highways in Montana|91-1]]
-[[Category:Utah Scenic Byways|191]]
+[[Category:U.S. Highways in Utah|91-1]]
+[[Category:U.S. Highways in Wyoming|91-1]]
 [[Category:U.S. Route 91|1]]
-[[Category:Scenic highways in Arizona]]