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Coordinates: 60°09′10″N 32°29′19″E / 60.1528°N 32.4886°E / 60.1528; 32.4886
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{{Infobox River | river_name = Syas River
{{Infobox river
| name = Syas
| image_name =
| native_name ={{native name|ru|Сясь}}
| caption =
| image = Sjas.jpg
| origin = [[Valdai Hills]]
| image_caption = River Syas some kilometers from Syasstroy
⚫
| mouth = [[Lake Ladoga]]
| basin_countries = [[Russia]]
| source1_location = [[Valdai Hills]]
⚫
| mouth = [[Lake Ladoga]]
| length = 260 km
| mouth_location =
| elevation = ?
| mouth_coordinates = {{coord|60.1528|N|32.4886|E|source:kolossus-dewiki|display=it}}
| discharge = 53 m³/s
| progression = {{RLake Ladoga}}
| watershed = 7,330 km²}}
| subdivision_type1 = Country
| subdivision_name1 = [[Russia]]
| length ={{convert|260|km|mi|0|abbr=on}}<ref name="GSE">{{cite book|title=Сясь|url=http://bse.sci-lib.com/article108306.html|publisher=Great Soviet Encyclopedia}}</ref>
| source1_elevation =
| mouth_elevation ={{convert|5|m|ft}}
| discharge1_avg ={{convert|53|m3/s|cuft/s}}<ref name="GSE" />
| basin_size ={{convert|7330|km2|mi2}}<ref name="GSE" />
}}
[[File:Syas River Leningrad Oblast.JPG|thumb|Syas River in Leningrad Oblast.]]
⚫
The '''Syas''' ({{Lang-ru|Сясь}}) is a [[river]] in [[Lyubytinsky District]] of [[Novgorod Oblast]] and [[Tikhvinsky District|Tikhvinsky]] and [[Volkhovsky District]]s of [[Leningrad Oblast]], [[Russia]]. The Syas flows from the [[Valdai Hills]] north into [[Lake Ladoga]]. The town of [[Syasstroy]] is located at its mouth. It is {{convert|260|km|mi}} long, and the area of its basin {{convert|7330|km2|sqmi}}. The largest tributary of the Syas is the [[Tikhvinka]] (right).


The source of the Syas is in the Valday Hills north of the settlement of [[Nebolchi]]. The river flows north and enters Leningrad Oblast. It crosses the [[Tikhvin Ridge]] from the south to the north. Further north, it accepts the Tikhvinka from the right and turns west. There it accepts the [[Lunenka River|Lunenka]] from the left, turns northwest and crosses into Volkhovsky District. The mouth of the Syas is downstream from the city of Syasstroy.
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'''Syas River''' ({{lang-ru|Сясь}}, {{lang-fi|Säsjoki, Sääsjoki}}) is a [[river]] in the [[Novgorod Oblast|Novgorod]] and [[Leningrad Oblast]]s of [[Russia]]. The Syas River flows from [[Valdai Hills]] north into [[Lake Ladoga]]. A town of [[Syasstroy]] is located at its mouth. The largest tributary is [[Tikhvinka River]]. Syas freezes up in November (sometimes in December or even January) and stays under the ice until April.


The river basin of the Syas comprises parts of Volkhovsky, Tikhvinsky, and [[Boksitogorsky District]]s of Leningrad Oblast and Lyubytinsky District of Novgorod Oblast. In the west and the south, it is separated from the river basin of the [[Volkhov (river)|Volkhov]], in the north it is separated from the river basin of the [[Svir]], and in the east it is separated from the river basin of the [[Volga]]. The Syas is connected with the Volga through the Tikhvinka, the [[Tikhvinskaya water system|Tikhvin Water System]], and the [[Chagodoshcha]] and the [[Mologa (river)|Mologa]].
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During the late [[Vendel Age]] and early [[Viking Age]], the Syas River was popular as an alternative route to the [[Volkhov]] for penetrating from the [[Baltic Sea]] through [[portage]]s to the [[Volga River]]. A fortress of [[Alaborg]] was built by the [[Vikings]] to guard the approaches to the Syas rapids. The route had declined by the [[10th century]].


The Syas freezes up in November (sometimes in December or even January) and stays under the ice until April.
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[[Category:Rivers of Leningrad Oblast]]
⚫
[[Category:Rivers of Novgorod Oblast]]


⚫
During the late [[Vendel Age]] and the early [[Viking Age]], the Syas was popular as an alternative route to the [[Volkhov (river)|Volkhov]] for penetrating from the [[Baltic Sea]] through [[portage]]s to the Volga. A fortress of [[Alaborg]] was built by the [[Vikings]] to guard the approaches to the Syas rapids. The route had declined by the 10th century.
{{Northwest-Russia-geo-stub}}


==References==
[[cs:Sjas]]
{{reflist}}
[[de:Sjas]]

[[et:Sjass]]
==External links==
[[lt:Sjasė]]
* {{cite web|url=http://textual.ru/gvr/index.php?card=152643|script-title=ru:Река Сясь|publisher=State Water Register of Russia|language=Russian|accessdate=20 January 2012}}
[[nl:Sjas (rivier)]]

[[no:Sias]]
{{Rivers of Russia}}
[[pl:Sjas]]

[[ru:Сясь (река)]]
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[[Category:Rivers of Leningrad Oblast]]
[[fi:Säsjoki]]
⚫
[[Category:Rivers of Novgorod Oblast]]

Latest revision as of 10:58, 25 March 2024

Syas
River Syas some kilometers from Syasstroy
Native nameСясь (Russian)
Standort
LandRussland
Physical characteristics
Source 
 • locationValdai Hills
MouthLake Ladoga
 • coordinates
60°09′10″N 32°29′19″E / 60.1528°N 32.4886°E / 60.1528; 32.4886
 • elevation
5 metres (16 ft)
Length260 km (162 mi)[1]
Basin size7,330 square kilometres (2,830 sq mi)[1]
Discharge 
 • average53 cubic metres per second (1,900 cu ft/s)[1]
Basin features
ProgressionLake Ladoga→ Neva→ Gulf of Finland
Syas River in Leningrad Oblast.

The Syas (Russian: Сясь) is a river in Lyubytinsky District of Novgorod Oblast and Tikhvinsky and Volkhovsky Districts of Leningrad Oblast, Russia. The Syas flows from the Valdai Hills north into Lake Ladoga. The town of Syasstroy is located at its mouth. It is 260 kilometres (160 mi) long, and the area of its basin 7,330 square kilometres (2,830 sq mi). The largest tributary of the Syas is the Tikhvinka (right).

The source of the Syas is in the Valday Hills north of the settlement of Nebolchi. The river flows north and enters Leningrad Oblast. It crosses the Tikhvin Ridge from the south to the north. Further north, it accepts the Tikhvinka from the right and turns west. There it accepts the Lunenka from the left, turns northwest and crosses into Volkhovsky District. The mouth of the Syas is downstream from the city of Syasstroy.

The river basin of the Syas comprises parts of Volkhovsky, Tikhvinsky, and Boksitogorsky Districts of Leningrad Oblast and Lyubytinsky District of Novgorod Oblast. In the west and the south, it is separated from the river basin of the Volkhov, in the north it is separated from the river basin of the Svir, and in the east it is separated from the river basin of the Volga. The Syas is connected with the Volga through the Tikhvinka, the Tikhvin Water System, and the Chagodoshcha and the Mologa.

The Syas freezes up in November (sometimes in December or even January) and stays under the ice until April.

During the late Vendel Age and the early Viking Age, the Syas was popular as an alternative route to the Volkhov for penetrating from the Baltic Sea through portages to the Volga. A fortress of Alaborg was built by the Vikings to guard the approaches to the Syas rapids. The route had declined by the 10th century.

References

[edit]
  1. ^ a b c Сясь. Great Soviet Encyclopedia.
[edit]
  • Река Сясь (in Russian). State Water Register of Russia. Retrieved 20 January 2012.
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