2020 Map of Spring Hill

About this map

The Lost River Range dominates this Custer County landscape, where the peaks of the high country meet the broad Pahsimeroi Valley. This 2020 survey documents a transition from the protected woodlands of the Challis National Forest to the drainage basins of the Pahsimeroi River. Local hydrology is defined by mountain-fed streams like Doublespring Cr, Goldburg Cr, and the secluded Carlson Lake high on the slopes near Spring Hill. Transport across these remote ranges is limited to primitive routes such as Donkey Hills Rd and the Nat For Dev Rd 118. This modern data from the U.S. Geological Survey provides a precise view of the topography and public land boundaries at the intersection of T11N and T12N, capturing the character of Idaho's high-desert ranching and forest interface.