Lewis River (Wyoming)

The Lewis River is an 18.1-mile-long (29.1 km)[2] tributary of the Snake River. The entire course of the river is located within the boundaries of Yellowstone National Park in Wyoming, US.[3] The river is named for Meriwether Lewis, commander of the Lewis and Clark Expedition.[4]

Lewis River
Location
CountryUnited States
StateWyoming
Physical characteristics
Source 
 • locationShoshone Lake, Yellowstone National Park, Wyoming
 • coordinates44°21′19″N 110°39′54″W[1]
MouthSnake River
 • location
Yellowstone National Park, Wyoming
 • coordinates
44°08′32″N 110°39′49″W[1]
Length18 mi (29 km)[2]

The Lewis River begins at the southern end of Shoshone Lake and flows southerly approximately 3 miles (5 km) to Lewis Lake. This short stretch of the river is the only portion of the river where boating is permitted. The river reemerges at the southern end of Lewis Lake and flows in a general southerly direction through a steep canyon roughly paralleling the south entrance road toward the south entrance of the park. Below Lewis Lake the river passes over several cascades and waterfalls including Lewis Falls. Shortly before leaving the park, the Lewis River merges with the Snake River, changing the course of the Snake southward. The Snake soon flows out of Yellowstone into Grand Teton National Park and Jackson Lake.

The Lewis River has rapids up to Class VI and takes a 29-foot (8.8 m) drop at Lewis Falls, the most famous of many waterfalls and rapids on this short but scenic river.

Brown, rainbow and Yellowstone cutthroat trout are found in the river.

  • Lewis River
  • Lewis Falls

See also

References
  1. U.S. Geological Survey Geographic Names Information System: Lewis River, USGS GNIS
  2. U.S. Geological Survey. National Hydrography Dataset high-resolution flowline data. The National Map Archived March 29, 2012, at the Wayback Machine, accessed May 4, 2011
  3. "USGS Lewis Canyon (WY) Topo Map" (Map). TopoQuest USGS Quads. Retrieved June 29, 2008.
  4. "Lewis River". wyomingplaces.org. Archived from the original on 2016-03-04. Retrieved 2008-12-13.
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