Flathead River

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Flathead River
Lower Flathead River.jpg
The river near Perma, Montana
Countries United States, Canada
State Montana
Province British Columbia
Tributaries
 - left Middle Fork Flathead River, South Fork Flathead River, Swan River (Montana)
 - right North Fork Flathead River
Source Confluence of North Fork and Middle Fork Flathead River
 - location Rocky Mountains
 - elevation 3,120 ft (951 m)
 - coordinates 48°28′2″N 114°4′10″W / 48.46722°N 114.06944°W / 48.46722; -114.06944  [1]
Mouth Clark Fork
 - elevation 2,484 ft (757 m) [2]
 - coordinates 47°21′56″N 114°46′34″W / 47.36556°N 114.77611°W / 47.36556; -114.77611
FLATHEAD RIVER Latitude and Longitude:

47°21′56″N 114°46′34″W / 47.36556°N 114.77611°W / 47.36556; -114.77611
  [1]
Length 158 mi (254 km) [3]
Basin 8,795 sq mi (22,779 km2) [4]
Discharge for near mouth, at Perma, MT; max at Polson, MT
 - average 11,380 cu ft/s (322 m3/s) [4]
 - max 110,000 cu ft/s (3,115 m3/s)
 - min 2,670 cu ft/s (76 m3/s)
Flathead River Map.png
Map of the Flathead River, its tributary forks and downriver connection to the Columbia River via Clark Fork and the Pend Oreille River

The Flathead River ( Salish: ntx̣ʷetkʷ, ntx̣ʷe [5]), in the northwestern part of the U.S. state of Montana, originates in the Canadian Rockies to the north of Glacier National Park and flows southwest into Flathead Lake, then after a journey of 158 miles (254 km), empties into the Clark Fork. The river is part of the Columbia River drainage basin, as the Clark Fork is a tributary of the Pend Oreille River, a Columbia River tributary. With a drainage basin extending over 8,795 square miles (22,780 km2) and an average discharge of 11,380 cubic feet per second (322 m3/s), the Flathead is the largest tributary of the Clark Fork and constitutes over half of its flow. [6]

Course

The Flathead River rises in forks in the Rocky Mountains of northwestern Montana. The largest tributary is the North Fork, which runs from the Canadian province of British Columbia southwards. The North Fork is sometimes considered the main stem of the Flathead River. [7] [8] Near West Glacier the North Fork combines with the Middle Fork to form the main Flathead River. [3] The river then flows westwards to join the South Fork and cuts between the Whitefish Range and Swan Range via Bad Rock Canyon. All of the headwaters forks are entirely or in part designated National Wild and Scenic Rivers. After the river leaves the canyon it flows into the broad Flathead Valley and arcs southwest, passing Columbia Falls and Kalispell, before joining the Whitefish River and emptying into Flathead Lake, where the Swan River joins. [3] [9]

Near Polson the river leaves the natural basin of Flathead Lake, but first passes through Kerr Dam, which maintains the level of Flathead Lake artificially. After flowing through the dam the river turns south and meanders through the Flathead Valley west of the Mission Mountains, and at Dixon it is joined by the small Jocko River. At the Jocko River confluence it turns west, and a few miles after flows into the Clark Fork near Paradise. [10]

History

Fur traders employed by the North West Company and Hudson's Bay Company entered the Flathead Valley in the early 19th century. Trading posts were established north of Flathead Lake. The first settlers began arriving in the 1860s. Irrigation agriculture began in the 1880s. [11]

Recreation

The river is a Class I river in Montana for purposes of recreational access. [12] The South fork of the Flathead, from Youngs Creek to Hungry Horse reservoir; Middle fork of the Flathead – from Schaffer creek to its confluence with the Flathead River; and the Flathead River – to its confluence with the Clark Fork River, are designated.

Conservation

It is part of the National Wild and Scenic Rivers System. Reaches designated wild and scenic include the entire North Fork south of the Canada–US border, the entire Middle Fork, and the South Fork above Hungry Horse Reservoir. [13]

The North Fork Flathead River in Montana is designated a National Wild and Scenic River. The river is not afforded any protection in British Columbia. This has been the subject of 33 years of dispute between the United States and Canada. In 1988 the International Joint Commission, ruled that a proposed open pit coal mine would violate the 1909 Boundary Waters Treaty.

Energy development once threatened the North Fork, which was deemed the "wildest river in the continental United States" by The New York Times in 2004. On February 21, 2008, BP announced to drop plans to obtain drilling rights for coalbed methane extraction in the river's headwaters. However, the Cline Mining Corporation still intends to start a mountaintop-removal coal mining project. [14]

On February 9, 2010, the British Columbia government announced that it would not permit mining, oil and gas development and coalbed gas extraction in British Columbia's portion of the Flathead Valley, which was praised by environmental groups and the U.S. Senators from Montana. [15]

There is a proposal to protect one-third of British Columbia's Flathead River by adding it to the Waterton-Glacier International Peace Park. In 2003 Parks Canada requested the province of British Columbia to take part in a park feasibility study. British Columbia has yet to agree to this.

Additional reading

  • Sullivan, Gordon (2008). Saving Homewaters–The Story of Montana’s Streams and Rivers. Woodstock, Vermont: The Countryman Press. ISBN  978-0-88150-679-2. 

FLATHEAD RIVER INFORMATION

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