1955 Map of Thermopolis

About this map

The Wind River Indian Reservation dominates the southern landscape of this mid-century survey, where the Wind River flows through the Wind River Diversion Dam toward the extensive Boysen Reservoir. This era shows a region defined by water management and mineral extraction, with the Hamilton Dome Oil Field, Circle Ridge Oil Field, and Winkleman Dome Oil Field signaling the industrial footprint on the high plains. Along the Bighorn River, the town of Thermopolis serves as a gateway to Hot Springs State Park, while the Chicago, Burlington & Quincy RR tracks follow the river corridor through Kirby and Lucerne. In the west, the massive peaks of the Absaroka Range and Wind River Range rise sharply, including the high point at Gannett Peak. This map captures the integration of tribal lands, irrigation projects like the Riverton Reclamation Area, and remote outposts such as the Duncan Ranch School.