Agaidika Range

The Beaverhead Mountains rise along the Continental Divide above the Lemhi River country. Their ridges separate waters flowing towards the Missouri from those bound for the Salmon and Columbia. Lemhi Pass offers a crossing through the range and was used by Shoshone travellers. In 1805 Meriwether Lewis crossed there in search of the Shoshone; after obtaining horses from them, the full Lewis and Clark expedition followed across the mountains on its journey west.