2017 Map of Heart Mountain

About this map

Emigrant Trail segments wind through this high-elevation corner of Idaho, following the complex drainage network of Targhee National Forest. The landscape is dominated by significant vertical relief, ranging from the volcanic prominence of Heart Mountain in the west to Black Mtn and Black Mountain in the central and southeastern reaches. The mapping reveals a rugged geography of deep canyons and high basins, including Grouse Canyon and Slate Basin, where seasonal water sources like Crooked Creek and Myers Creek have carved distinct paths toward the Medicine Lodge Bench. Historical movement through the area is evidenced by established routes such as Deep Creek Rd and various Forest Service developments. This high country is punctuated by specialized ecological features, such as Antelope Lakes and the thermal presence of Warm Springs, providing a detailed look at the hydrology of the Bitterroot Range foothills.