1907 Map of Blackfoot Res.

About this map

A.F. Dunnington and his team surveyed this northern Montana landscape in 1907 during a collaborative effort between the U.S. Geological Survey, the U.S. General Land Office, and the U.S. Reclamation Service. The sheet is a technical study of elevation and drainage, focusing on the sharp bluffs and river valleys found within T.34 N. and T.33 N.. Benchmarks such as BM 3775 and BM 3713 serve as primary anchors for the contour data, which was likely gathered to support early irrigation or land reclamation projects in the region. The map emphasizes the physical topography over human settlement, providing a clear record of the terrain as it existed before significant modern development altered the local water systems.