1964 Map of Tenmile Lake

About this map

Lost Horse Guard Station sits in the lower drainage of Lost Horse Creek, serving as a key human outpost in this high-altitude wilderness during the mid-1960s. The landscape is defined by the crest of the Bitterroot Range, which forms the Idaho-Montana state line and the divide between the Bitterroot and Nezperce National Forests. High alpine lakes such as Tenmile Lake, Twelvemile Lake, and Twin Lakes dot the interior, many accessible only via the established Pack Trail network. Notable geological features like Poverty Slide and Ohio Slide reflect the volatile mountain terrain. The map captures the extent of the Selway-Bitterroot Wilderness shortly after its official designation, documenting the remote drainages of Roaring Lion Creek and Sawtooth Creek before modern backcountry management evolved.