North Fork Flathead River

Coordinates: 48°28′02″N 114°04′09″W / 48.46722°N 114.06917°W / 48.46722; -114.06917

North Fork Flathead River
North Fork of Flathead River, North Fork of the Flathead River
River
The river at the boundary of Glacier National Park
Countries	Canada, United States
States	British Columbia, Montana
City	West Glacier, Montana
Source	Clark Range
- coordinates	49°19′56″N 114°51′09″W / 49.33222°N 114.8525°W / 49.33222; -114.8525 [1]
Mouth	Flathead River
- elevation	3,120 ft (951 m)
- coordinates	48°28′02″N 114°04′09″W / 48.46722°N 114.06917°W / 48.46722; -114.06917 [1]
Length	153 mi (246 km) [2]
Basin	1,560 sq mi (4,040 km2)
Discharge	for USGS gage #1235550, 4.1 miles (6.6 km) from the mouth
- average	2,976 cu ft/s (84 m3/s)
- max	69,100 cu ft/s (1,957 m3/s)
- min	190 cu ft/s (5 m3/s)
Map of the Flathead River drainage basin showing the North Fork

The North Fork Flathead River is a 153-mile (246 km)^[2] river flowing through British Columbia (BC), Canada south into the U.S. state of Montana. It is one of the three primary forks of the Flathead River, a tributary of the Pend Oreille River, via Clark Fork. The river is sometimes considered the upper headwaters of the Flathead River,^[3] although the North Fork is its official name in the U.S. Other naming conventions for the river include Flathead River - North Fork, North Fork of Flathead River, and North Fork of the Flathead River.^[1]

The river originates in a valley northeast of Lake Koocanusa in the Clark Range, and flows west. It then meets the Continental Divide and turns south, winding through a broad glacial valley. The river then crosses the U.S.-Canada border into the state of Montana, where it begins to delineate the western boundary of Glacier National Park. Roughly following Montana State Route 486, the river winds southwest past Kintla Lake, Bowman Lake, Quartz Lake, Logging Lake, and Lake McDonald, then turns west and south into a narrower valley before joining the Middle Fork Flathead River near the southwestern entrance of the national park, several miles northeast of Columbia Falls. Less than 6 miles (9.7 km) below this confluence, the combined river joins the South Fork Flathead River, forming the main Flathead River.^[4]

Wild and Scenic River designation

Although the North Fork is designated as a National Wild and Scenic River (1975) in the United States, its greater length in BC (31 miles (50 km), not including headwaters forks) is not. Water in the BC section remains relatively pure as there are no permanent residents or livestock in this drainage north of the border.^[5]

Dam proposal

In the 1940s the Glacier View Dam was proposed, which would have flooded much of the river's valley between Glacier View Mountain and the Canadian border. Supported by Flathead Valley interests, the dam and reservoir were opposed by the National Park Service, as between 10,000 acres (4,000 ha) and 20,000 acres (8,100 ha) of park lands would have been flooded. The proposed dam was cancelled by 1950.^[6]

See also

• Hungry Horse Reservoir
• List of rivers of Montana

References

49°11′44″N 114°30′39″W / 49.1956°N 114.5109°W / 49.1956; -114.5109 (source) 48°16′49″N 114°02′27″W / 48.2802°N 114.0409°W / 48.2802; -114.0409 (mouth)

1. ^ ^{a b c} "North Fork Flathead River". Geographic Names Information System, U.S. Geological Survey. 4 April 1980. http://geonames.usgs.gov/pls/gnispublic/f?p=gnispq:3:::NO::P3_FID:788164. Retrieved 2009-08-29. 
2. ^ ^{a b} Calculated by adding Canada and US numbers given in "Flathead Subbasin Plan". Northwest Power and Conservation Council. p. 13. http://www.nwcouncil.org/fw/subbasinplanning/flathead/plan/EntirePlan.pdf. Retrieved 30 August 2009.  and Fischer, Carol (1990). Paddling Montana. Globe Pequot. pp. 67–69. ISBN 9781560445890. http://books.google.com/books?id=vJG00JgVtwIC&d. 
3. ^ "Flathead River". BC Geographical Names. http://apps.gov.bc.ca/pub/bcgnws/names/12867.html. 
4. ^ Woessner, William; Potts, Donald F.; Running, Steven W.; Kimball, John S.; DeLuca, Thomas H.; Fagre, Daniel B.; Makepeace, Seth; Hendrix, Marc S. et al. (30 July 2004). "Flathead River Basin Hydrologic Observatory, Northern Rocky Mountains". Consortium of Universities for the Advancement of Hydrologic Science. www.cuahsi.org. http://www.cuahsi.org/Prospectuses/HO%20final%20flathhead%20Basin%20Woessner.pdf. Retrieved 2009-08-29. 
5. ^ "North Fork Flathead River". American Rivers. http://www.americanrivers.org/assets/pdfs/mer-2009/north-fork-of-the-flathead.pdf. Retrieved 2009-08-29. 
6. ^ Buchholtz, C.W. (1976). "Chapter 6:Guardians of Glacier". Man in Glacier. Glacier Natural History Association. ISBN 0-916792-01-3. http://www.nps.gov/history/history/online_books/glac2/chap6.htm. Retrieved 4 June 2011.