2014 Map of Sandpiper Reservoir

About this map

Sandpiper Reservoir and a series of smaller catchment basins define this semi-arid stretch of Blaine County, Montana. The landscape is deeply carved by drainage systems such as Coal Mine Coulee and Bullwhacker Coulee, which suggest a long history of seasonal water management and grazing. Local infrastructure is sparse, relying on a network of unpaved routes including Cow Island Rd and Timber Ridge Rd to navigate the undulating terrain. To the south, the topography descends toward Lion Coulee and N Fork Lion Coulee, showing the intricate natural erosion patterns of the northern plains. This 2014 survey documents the continued reliance on remote water sources like Blanch Reservoir and Brush Shack Reservoir to support the region's ranching economy.