2020 Map of Ratio Mountain

About this map

Deerlodge National Forest dominates this section of Jefferson County, where the high-altitude landscape is defined by the sharp divides between Ratio Mtn and Goodwin Mtn. The drainage patterns here are complex, with headwaters like Shedhorn Creek and Beaver Creek flowing through steep canyons and open basins. Notable mountain meadows and clearings such as Lower Whitetail Park and the aptly named Poison Flats provide distinct breaks in the forested slopes. Historical infrastructure is limited but significant, including the State Mine Road which hints at the area's legacy of extraction, while reliable water sources like Wildhorse Spring and Roadside Spring mark essential stops in this backcountry terrain. To the east, the elevation drops toward Whitetail Valley, where the Keogh Reservoir serves as a key catchment point in an otherwise arid stretch of the Montana Rockies.