Northwest Passage Scenic Byway
Known as Idaho’s longest byway, Northwest Passage Scenic Byway follows the route Meriwether Lewis and William Clark took through north central Idaho in 1803. Traverse the winding Clearwater River Canyon and see the beautiful blue blooms of the Camas Prairie. Visit the numerous Nez Perce historical sites along this route to understand the importance of Indigenous people in this region.
31 Byways. 31 Ways to Be Inspired.
A variety of scenic, natural, historic, recreational, archeological and cultural experiences can be found on Idaho’s 31 scenic byways. View the video to get a taste of the adventures that await you, and start planning your next road trip.
Road Trip Tips
Turn-by-Turn Directions: Begins in Lewiston and follows U.S. 12 northeast to the Idaho-Montana border for 175 miles, allow 4 hours; also follows Idaho 13 from Kooskia to Grangeville and the junction of U.S. 95, allow 40 minutes.
Road Conditions: Idaho 13 and U.S. 12 are winding, two-lane, paved roads with occasional passing lanes and slow vehicle turnouts. Winter driving conditions may include black ice in the canyons and snow-covered roads at higher elevations.
Full Services in: Lewiston, Orofino, Kamiah, Kooskia and Grangeville
Partial Services in: Stites, Syringa, Lowell and Powell
Motorcycle Route: Yes
Full Services: When gas, food and lodging are available
Partial Services: When gas and a few other facilities are available
Nearby Adventures
Follow the path of history and explore the ancestral homeland of the Nez Perce people while experiencing Idaho’s natural beauty.
Nez Perce National Historical Park
Dworshak State Park
Hells Gate State Park
Download Before You Hit the Road
Start planning your epic Idaho road trip with the help of these free travel publications.
Idaho Roadsider
State Highway Map
Travel Tips
Need some ideas for your next Idaho road trip? Check out these travel tips and start planning your adventure.