2024 Map of Tenmile Lake

About this map

Tenmile Lake and Twelvemile Lake anchor this high-elevation mountain terrain where the Idaho Montana state line follows the crest of the Bitterroot Mountains. The landscape is defined by its dramatic glacial features and the overlapping boundaries of the Bitterroot National Forest, Nez-Perce National Forest, and the Selway-Bitterroot Wilderness. A network of backcountry access points is visible, including the Sawtooth Trl and Roaring Lion Trl, which navigate the steep drainage basins of Sawtooth Creek and Roaring Lion Creek. Notable geomorphic features such as Poverty Slide and the Ohio Side suggest the dynamic nature of the slopes above Lost Horse Creek. This survey captures the remote character of the Bitterroot Divide, where transport is limited to rugged routes like Lost Horse Rd and Twin Lakes Rd, serving as a record of these protected wilderness corridors.