Clarks Fork Yellowstone River

Coordinates: 45°39′00″N 108°42′55″W / 45.65000°N 108.71528°W / 45.65000; -108.71528
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Clarks Fork Yellowstone River
Clark Fork Canyon, 1893
CountryUnited States
StateMontana, Wyoming
Physical characteristics
SourceBeartooth Mountains
 • location45°02′33″N 109°53′42″W / 45.04250°N 109.89500°W / 45.04250; -109.89500 (Clarks Fork of the Yellowstone)[1]
MouthLaurel, Montana
 • coordinates
45°39′00″N 108°42′55″W / 45.65000°N 108.71528°W / 45.65000; -108.71528
 • elevation
3,241 ft (988 m)
Length141 mi (227 km)
 • locationnear Silesia
 • average1,142 cu ft/s (32.3 m3/s)[2]
DesignatedNovember 28, 1990

The Clarks Fork of the Yellowstone River (sometimes called the Clark's Fork River) is a tributary of the Yellowstone River, 150 mi (241 km) long in the U.S. states of Montana and Wyoming.[3]

It rises in southern Montana, in the Gallatin National Forest in the Beartooth Mountains, approximately 4 mi (6 km) northeast of Cooke City and southwest of Granite Peak. It flows southeast into the Shoshone National Forest in northwest Wyoming, east of Yellowstone National Park, then northeast back into Montana. It passes Belfry, Bridger, Fromberg, and Edgar, and joins the Yellowstone approximately 2 mi (3 km) southeast of Laurel.

See also[edit]


  1. ^ "Clarks Fork of the Yellowstone". Geographic Names Information System. United States Geological Survey, United States Department of the Interior.
  2. ^ "USGS Surface Water data for Montana: USGS Surface-Water Annual Statistics".
  3. ^ George William Sherk (2000), Dividing the Waters: The Resolution of Interstate Water Conflicts in the United States, Martinus Nijhoff Publishers, ISBN 978-90-411-9819-8