2017 Map of Johnson Mountain

About this map

Johnson Mountain and Joes Mtn dominate the eastern reaches of this Montana landscape, where the Middle Fork Dearborn River carves a path through the terrain. The map records a complex hydrological network including Gillette Ditch and several seasonally variable streams like Big Skunk Cr and Little Skunk Cr. Toward the center, the distinct elevations of Sunset Hill and Sunrise Hill rise above the drainage of Bedrock Cr. This 2017 survey by the U.S. Geological Survey illustrates a modern view of Lewis and Clark County, defined by its rural road network—including L B C Rd and McDonough Rd—and the persistent watercourses like the Dearborn River that have shaped local ranching and land use patterns for generations.