1962 Map of Allison Creek

About this map

The Salmon River carves a deep path through the western edge of this Lemhi County landscape, providing a critical corridor for transport and travel in an otherwise high-elevation wilderness. To the east, the Salmon National Forest dominates the terrain, where numerous drainages like McKim Creek, Allison Creek, and Poison Creek flow westward toward the main river. The land is defined by sharp elevation changes, as seen in the prominent Long Ridge and the South Fork Poison Creek valley.