1920 Map of Choteau

About this map

The Teton River flows southeast through this 1920 Progressive Military Map, carving a path through the high plains of north-central Montana. This survey, compiled under Col. Chas. L. Potter, captures a landscape defined by early 20th-century irrigation and railroad expansion. Major water management projects like the Pishkun Reservoir, Willow Creek Reservoir, and the Floweree Canal reflect the region's transition to intensive agricultural use. The rail infrastructure is prominent, showing the Great Northern and Chicago Milwaukee and St. Paul R. R. lines connecting small agricultural hubs such as Agawam, Bynum, and Choteau. Notable landmarks include Priest Butte and the Teton Gravel Pit, while the southern reaches show the Sun River corridor as it passes through Cascade County and Lewis and Clark County.