Sacajawea Historic Byway
Sacajawea Historic Byway is a State Scenic Byway in Idaho. Within Idaho it covers roughly 140 miles. The map below shows its route. Use “Plan a drive” to open it in the Road Sorties route planner — already routing along Sacajawea Historic Byway with scenic roads turned on, ready to add your own stops.
The Sacajawea Historic Byway runs 132 miles through some of Idaho's most remote country. It follows Idaho 28 southeast from Salmon along the Lemhi River Valley, over Lemhi Pass near the Continental Divide, then continues on Idaho 33 to Interstate 15 south of Hamer on the Snake River Plain. The byway is named for Sacajawea, the Agai'dika Shoshone-Bannock woman born in this valley who later guided the Lewis and Clark Expedition; it passes through her homeland, telling that story alongside the later flight of the Nez Perce and the legacy of Shoshone chief Tendoy. The Sacajawea Interpretive, Cultural, and Educational Center in Salmon anchors the route's historical interpretation, while near Leadore, travelers can see 20-foot beehive-shaped charcoal kilns once used to fuel silver and gold processing. Fossils of the extinct Pleistocene American lion and Native American rock art add still older layers to a drive built around deep human and natural history.
- 132 miles, Salmon over Lemhi Pass to I-15
- Named for Sacajawea, born in this valley
- Sacajawea Interpretive, Cultural, and Educational Center
- Historic charcoal kilns near Leadore
- Pleistocene American lion fossils
- Lemhi-Shoshone & Nez Perce history
Plan a drive on Sacajawea Historic Byway →
What is a State Scenic Byway?
State Scenic Byways are roads a state has formally recognized for their scenic, natural, historic or cultural value — each state's own curated collection of drives worth taking slowly.
Where to Stay along Sacajawea Historic Byway
5 campgrounds and RV parks sit within about 5 miles of Sacajawea Historic Byway.
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