2020 Map of Block Mountain

About this map

The Big Hole River serves as the primary drainage and boundary between Madison and Beaverhead counties, cutting through a landscape defined by sharp elevation changes and early ranching infrastructure. Near the riverbanks, the Sodak Mill and several irrigation works like the Fred Bryant Ditch and Coconougher Ditch illustrate the region's historical reliance on water management for agriculture and industry. The terrain rises steeply from the river flats toward prominent landmarks such as Bell Peak and Block Mtn, while complex drainage features like Stevens Slough and Albers Slough occupy the lower basins.