Description - In 1803, President Thomas Jefferson commissioned Meriwether Lewis and William Clark to find the Northwest Passage- the link between the Missouri River and the Columbia River through the unexplored Rocky Mountains. Lewis and Clark's arduous journey proved that no easy route existed; however, they did find the trail through the mountains that had been used by generations of Nez Perce Indians. The Northwest Passage Scenic Byway passes through the winding Clearwater River canyon from the junction of U.S. 95 and U.S. 12 near Spalding, and then leaves the river climbing south to the Camas Prairie. Along the way are numerous Nez Perce cultural sites and Lewis and Clark Expedition campsites. The Nez Perce National Historical Park Museum at Spalding features displays, cultural demonstrations, and a historical movie featuring the traditions of the Nez Perce Tribe. Wheat, barley, peas, alfalfa and wildflowers create a patchwork quilt of colors that wave in the gentle breeze of the Camas Prairie. So have your camera ready when you drive this scenic route between Lewiston and Grangeville.
- The Northwest Passage Scenic Byway is known for it's Cultural, Historical, Natural, Recreational and Scenic Attractions.
Directions from : Formerly called the Clearwater Canyons Scenic Byway, this route begins at the junction of US 12 & US 95 at Spalding, Idaho and follows U.S. 12 northeast to the Idaho - Montana border; also follows Idaho 13 from Kooskia to Grangeville and the junction of US 95.