Birch Creek winding through a wide open landscape of desert shrubs, with the Hawley Mountains in the distance. — Birch Creek, between Mud Lake and Lone Pine, near Leadore. Photo credit: Visit Idaho.

A bronze statue of Sacajawea holding a baby at the Sacajawea Interpretive, Cultural, and Educational Center. — Statue of Sacajawea at the Sacajawea Interpretive, Cultural, and Educational Center, Salmon. Photo credit: Visit Idaho.

A white teepee in an open field, with trees and mountains in the distance, at the Sacajawea Interpretive, Cultural, and Educational Center. — Teepee at the Sacajawea Interpretive, Cultural, and Educational Center, Salmon. Photo credit: Visit Idaho.

Closeup view of the stone Sacajawea Birthplace Monument. — Sacajawea Birthplace Monument, between Baker and Tendoy. Photo credit: Visit Idaho.

Closeup view of interpetive trail signs at the Sacajawea Interpretive, Cultural, and Educational Center. — Sacajawea Interpretive, Cultural, and Educational Center trail signs, Salmon. Photo credit: Visit Idaho.

Photo exhibit showing pictures of people at the Sacajawea Interpretive, Cultural, and Educational Center. — Sacajawea Interpretive, Cultural, and Educational Center exhibit, Salmon. Photo credit: Visit Idaho.

Interpretive trail signs with a wide open desert landscape in the background at Charcoal Kilns Interpretive Site. — Charcoal Kilns Interpretive Site, near Leadore. Photo credit: Visit Idaho.

An interpretive trail sign at Charcoal Kilns Interpretive Site. — Charcoal Kilns Interpretive Site, near Leadore. Photo credit: Visit Idaho.

Closeup of two stone charcoal kilns at the Charcoal Kilns Interpretive Site. — Charcoal Kilns Interpretive Site, near Leadore. Photo credit: Visit Idaho.

View of a Sacajawea Historic Byway interpretive trail sign. — Sacajawea Historic Byway signage, near Terreton. Photo credit: Visit Idaho.

Sacajawea Historic Byway road sign — Sacajawea Historic Byway signage, near Terreton. Photo credit: Visit Idaho.

View of an open landscape with trees and a few buildings, and mountains in the distance. — Town of Tendoy. Photo credit: Visit Idaho.

View of the snow-covered Hawley Mountains. — Hawley Mountains, between Mud Lake and Lone Pine. Photo credit: Visit Idaho.

View of the Lewis and Clark National Historic Trail sign in a grassy field with trees scattered around. — Lewis and Clark National Historic Trail signage, near Tendoy. Photo credit: Visit Idaho.

View of the stone Chief Tendoy Grave and Monument from behind a wire fence. — Chief Tendoy Grave and Monument, near Tendoy. Photo credit: Visit Idaho.

A bird with black wings and an orange head and breast, flying low over field dotted with orange flowers at Mud Lake. — Birdwatching at Mud Lake, near Terreton. Photo credit: Visit Idaho.

The exterior of the Sacajawea Interpretive, Cultural, and Educational Center and an outdoor firepit area. — The Sacajawea Interpretive, Cultural, and Educational Center, Salmon. Photo credit: Visit Idaho.

Aerial view of three stone charcoal kilns surrounded by an open landscape of brush, at the Charcoal Kilns Interpretive Site. — Charcoal Kilns Interpretive Site, near Leadore. Photo credit: Visit Idaho.

View overlooking the town of Salmon with the city shown surrounded by mountains and greenery. — Town of Salmon. Photo credit: Visit Idaho.

Aerial view of Mud Lake, with green landscapes in the distance. — Mud Lake, near Terreton. Photo credit: Visit Idaho.

A long stretch of road surrounded by wide open fields, with mountains in the distance. — Highway 28, near Terreton. Photo credit: Visit Idaho.

Two women walking on the sidewalk past retail stores in downtown Salmon. — Main Street, Salmon. Photo credit: Visit Idaho.

Sacajawea Historic Byway

Tales of the past surround you on every side as you drive the Sacajawea Historic Byway. Parallel to the Continental Divide, this byway makes its way through the Lemhi River Valley, summits the Lemhi Pass and then drops onto the Snake River Plain. Discover rich Native American history and learn more about Sacajawea’s story and her impact on the Corps of Discovery and Idaho.

Length

135 miles
218 km

Time

2 hours,
6 minutes

Region

Eastern & Central Idaho

When to Visit

Spring, Summer, Fall

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.

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Road Trip Tips

Turn-by-Turn Directions: The byway begins at the intersection of Interstate 15 and Idaho 33 at exit 143. Follow Idaho 33 for about 12 miles west to its junction with Idaho 28. Finally, take Idaho 28 northwest for 120 miles to Salmon.

Road Conditions: This byway consists of two-lane paved roads with areas for passing. Watch for icy conditions and snow drifts in winter.

Full Services in: Salmon

Partial Services in: Terreton, Mud Lake, Lone Pine, Lemhi and Tendoy

Full Services: When gas, food and lodging are available

Partial Services: When gas and a few other facilities are available

Nearby Adventures

Pull off the road for a deep breath in wide-open Idaho—explore Camas National Wildlife Refuge, drive into Mud Lake Wildlife Management Area or hike one of the many historic trails that wind through the Sacajawea Scenic Byway area.