2014 Map of Eureka Basin

About this map

The Gravelly Range dominates this landscape in Beaverhead County, defining the high-altitude divide where the Madison and Beaverhead County line runs along the southern ridges. The area is characterized by high basins and critical water sources like Twin Springs and Lone Willow Spring, which feed the many creeks descending the slopes. At the heart of the map lies the Eureka Basin, a distinct topographical bowl accessed by the lone Eureka Basin Rd. The drainage pattern is well-defined, showing the headwaters of the W Fork Madison River and Ruby River flowing in opposite directions from the range. The presence of Fish Creek Lake at the southern edge and numerous named springs like Long Creek Spring Number One highlights the importance of these water points for livestock and wildlife within the Beaverhead National Forest.