He was at Lemhi Pass, on today’s Montana-Idaho border. Except for a wooden fence along the border, a cattle guard at the crossing, and a logging road, the site is pristine. Along with the Missouri River from Fort Benton to Fort Peck Lake, and the Lolo Trail in Idaho, it is the closest we can come today to seeing a site as Lewis saw it in 1805. The U.S. Forest Service has done an excellent job of signposting the route Lewis traveled.
