Near Tendoy in Lemhi County, Idaho — The American West (Mountains)
Crossing the Great Divide
Corps of Discovery
"thus far I had accomplished one of those great objects on which my mind has been unalterably fixed for many years.," wrote Meriwether Lewis, 456 days after setting out from St. Louis.
Lewis, George Drouillard, Hugh McNeal, and John Shields crossed the Continental Divide here on August 12, 1805, in advance of the main expedition. They left the headwaters of the Missouri and entered the upper Columbia River Basin.
At 7,373 ft. (2,247 m.) Lemhi Pass is the highest elevation on the westward route of Lewis and Clark.
Lewis and Clark hoped to find a practical land route - a portage - between the Missouri and Columbia Rivers. Optimistically, they called this place "Portage Hill." Later, after five weeks of arduous travel through the rugged Rocky Mountains they learned this was not the Northwest Passage they sought.
Today you stand at the border of two states. In 1805, it was the boundary between two nations.
Purchase of the Louisiana Territory from France in 1803 strengthened the United States' drive to span the North American continent.
British and U.S. interests
Erected by Beaverhead-Deerlodge & Salmon-Chaillis National Forest.
Marker series. This marker is included in the Lewis & Clark Expedition marker series.
Location. 44° 58.5′ N, 113° 26.679′ W. Marker is near Tendoy, Idaho, in Lemhi County. Marker can be reached from Lemhi Pass Road near Lewis and Clark Highway (Forest Road 013), on the right when traveling south. Touch for map. Marker is in this post office area: Tendoy ID 83468, United States of America.
Other nearby markers. At least 8 other markers are within walking distance of this marker. From Route ... To Road (a few steps from this marker); "Most Distant Fountain" of the Mighty Missouri (approx. 0.3 miles away in Montana); The Beginning of the "Endless Missouri" (approx. 0.3 miles away in Montana); Lemhi Pass (approx. 0.3 miles away); Agency Creek (approx. 0.3 miles away); Sacajawea Memorial Area (approx. 0.3 miles away); Sacajawea (Memorial Area) (approx. 0.3 miles away); A Communication Across the Continent by Water (approx. 0.4 miles away). Touch for a list and map of all markers in Tendoy.
More about this marker. This marker is at the Lemhi Pass summit on a short trail paralleling Lemhi Pass Road.
This marker is on the Lewis and Clark National Back Country Byway and Adventure Road. The Byway is a 36 mile loop from Tendoy, Idaho to Lemhi Pass and back to Tendoy over gravel roads with a 4000 foot gain and loss in elevation. There are 10 designated stops with pullouts on the Byway and over two dozen information panels and markers on route. Estimated travel time is about 3 hours.
Categories. • Exploration • Natural Features •
Credits. This page was last revised on November 2, 2017. This page originally submitted on November 2, 2017, by Barry Swackhamer of San Jose, California. This page has been viewed 53 times since then. Photos: 1, 2. submitted on November 2, 2017, by Barry Swackhamer of San Jose, California.