1966 Map of Threemile Buttes

About this map

Custer National Forest encompasses much of this southeastern Montana landscape, where the terrain is defined by an intricate network of drainage gulches and high-country springs. The area shows a specialized ranching and mining economy centered around water access, evidenced by the numerous named water sources like Old Faithful Spring and Joe Yager Spring. Remote outposts such as Phillips Well and structural features like Bowers Reservoir indicate the infrastructure required to manage livestock in the high plains.