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Vedder Canal

Vedder River
Chilliwack River
Med 2005 10 05 01.jpg
The Vedder River, in Chilliwack, BC.
Countries Canada, United States
Province British Columbia
State Washington
Source Hannegan Pass
 - coordinates 48°53′3″N 121°31′42″W / 48.88417°N 121.52833°W / 48.88417; -121.52833 
Mouth Sumas River
 - coordinates 49°08′N 122°06′W / 49.133°N 122.100°W / 49.133; -122.100Coordinates: 49°08′N 122°06′W / 49.133°N 122.100°W / 49.133; -122.100 
Length 80 km (50 mi)
Basin 1,230 km2 (475 sq mi)
Discharge
 - average 77 m3/s (2,719 cu ft/s)
 - max 1,150 m3/s (40,612 cu ft/s)
 - min 15 m3/s (530 cu ft/s)

The Vedder River, called the Chilliwack River above Vedder Crossing, is a river in the Canadian province of British Columbia and the U.S. state of Washington.

The name Chilliwack comes from the Halkomelem word Tcil'Qe'uk, meaning "valley of many streams".

Originating as the Chilliwack River in Washington's North Cascades National Park, the river begins at Hannegan Pass and flows north across the Canada–United States border and into Chilliwack Lake. The river flows through Hells Gorge, a deep, dangerous-to-access gorge just below the river's headwaters that is home of a waterfall that the river drops over. The river picks up the Little Chilliwack River before crossing the border. There is a large sandy beach located where the river enters the lake, a popular place for people to party at. The river exits the north end of the lake and flows generally west via the Chilliwack River Valley to emerge on the Fraser Lowland on the south side of the City of Chilliwack. At Vedder Crossing, the river is joined by the Sweltzer River before flowing under a bridge at which its name changes to the Vedder River, after which is flows west and north to join the Sumas River just before that river's confluence with the Fraser River at the northeast end of Sumas Mountain. The river crosses the Fraser floodplain from Vedder Crossing to its confluence with the Sumas via the Vedder Canal, which prevents the river's considerable spring freshet from flooding the surrounding farmlands and towns, and which is part of the drainage system that turned Sumas Lake into Sumas Prairie.


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