Lewis and Clark Trail

The Lewis and Clark Trail is a highway that approximates the path taken by the Lewis and Clark Expedition in 1804–06, between St. Louis, Missouri and the Pacific Ocean at Astoria, Oregon. Like the Great River Road, it is marked along existing roadways, in this case mostly paralleling the Missouri and Columbia rivers.

This article is about the road route. For the hiking trail, see Lewis and Clark National Historic Trail.
Lewis and Clark Trail
Highway system

Roads followed include Interstate 29 in Iowa, the appropriately-numbered SD 1804, ND 1804, SD 1806, and ND 1806, and Washington State Route 14. Two separate routes of the trail are signed between St. Louis and East Fairview, North Dakota, one on each side of the Missouri.

The trail was conceived in the 1960s by the Lewis and Clark Trail Commission.[1]

Local names

In Washington, it is called the Lewis and Clark Trail Highway and is a state scenic byway.[2] The Washington State Legislature designated it as a named highway corridor in 1955, originally from Vancouver to Clarkston, and later expanded it to include most state highways along the Columbia River from Cape Disappointment to Clarkston.[3]

See also
  •  U.S. Roads portal

References
  1. Lewis and Clark Trail Commission (October 1969). Final Report of the Lewis and Clark Trail Commission (PDF) (Report). OCLC 129076.
  2. "Washington Scenic Byways Map" (PDF). Washington State Department of Transportation. Retrieved June 11, 2018.
  3. "RCW 47.22.020: Lewis and Clark Highway". Revised Code of Washington. Washington State Legislature. Retrieved October 4, 2021.


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