1984 Map of Aubrey Dam

About this map

Woody Island Coulee cuts through the northern plains of Blaine Co, Montana, in this mid-1980s topographic survey. The landscape is defined by the international border between Canada and the United States, where the southern edge of Saskatchewan meets the Big Sky State. This specific region focuses on the drainage and water management of the high prairie, centered on the Aubrey Dam reservoir. The map reveals the intricate natural contours of the coulee systems that snake across the border, illustrating how the physical geography ignores political boundaries. It serves as a precise record of the remote borderlands before further modern development, highlighting the essential infrastructure of Aubrey Dam in an otherwise sparsely populated ranching or conservation environment.