1957 Map of Sourdough School

About this map

The Sourdough School and East Fork School serve as primary anchors for this ranching landscape in Sweet Grass County, mapped in the late 1950s. The topography is defined by the drainage network of the Sweet Grass Creek watershed, where numerous seasonal and perennial flows like Sourdough Creek, Cottonwood Creek, and Sams Creek carve through the terrain. Human intervention in this environment is visible through the Boggs Ditch, a water management feature supporting the local agricultural economy.