2017 Map of Diamond Flat

About this map

Caribou National Forest dominates this section of eastern Idaho, where the high ridges of the Webster Range define the local topography. At the northern end of this reach, the landscape opens into the high mountain basins of Diamond Flat and Diamond Boulder Flat, historically significant grazing and passage areas. Traces of western expansion are preserved in the path of the Lander Trl, an early immigrant route that cut through these drainages. The map details a complex network of canyons and creeks, such as Mill Canyon and Stump Cr, which have served as critical water sources for livestock and local wildlife for generations. High points like Diamond Peak overlook a system of seasonal camps and ranching outposts in Upper Valley, illustrating the long-standing use of these public lands for both transit and mountain industry.