2017 Map of Eureka Basin

About this map

Beaverhead National Forest defines the topography of this high-elevation landscape along the boundary of Madison and Beaverhead counties. The drainage divide is marked by the Gravelly Range, which separates the headwaters of the Ruby River to the west from the W Fork Madison River to the east. This 2017 survey illustrates a complex hydrological network where several named springs, including Twin Springs, Long Creek Spring Number One, and Lone Willow Spring, feed into vital watercourses like Long Cr and Anderson Cr. The vastness of Eureka Basin is navigated primarily via the rugged Eureka Basin Rd and Gravelly Range Rd, providing a detailed look at the management boundaries and natural features of this southwestern Montana wilderness.