Lewis and Clark Back Country Byway
Visitor Services
The area surrounding the byway is remote. Be sure to bring water, food, binoculars, camera, first aid kit and emergency supplies. Bring a coat because it can snow any day of the year on the...[more]
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Special Considerations
This is a Type I byway, so roads are mostly single lane, graveled, and suitable for passenger vehicles when road conditions are dry.
Beware of muddy roads in late spring and early summer. The route is groomed in the winter months and is popular with snowmobilers.
Restrictions
Snow usually closes the roads from November until June. Call ahead to the Public Lands Center in Salmon, Idaho for road conditions: 208-756-5400. Off-road vehicle use is restricted to designated roads and trails.
Beware of muddy roads in late spring and early summer.
The surrounding area is very remote. Bring water, food, binoculars, a camera and emergency supplies. Bring a coat. It can snow any day of the year on the Divide.
Seasons
- Best Time to Drive
The byway is best between June and September. Lemhi Pass is open only from July to October.
- Winter
Groomed for snowmobiles from December-March
Road Conditions
- To find up to date information about the road conditions along Lewis and Clark Back Country Byway, please visit the FHWA listing of web sites for more information.
- Idaho

