1958 Map of Blanchard Ranch

About this map

Blanchard Ranch and the nearby Archambeault Ranch anchor this landscape in the Missouri River Basin during the late 1950s. The terrain is defined by a sophisticated network of water management features, including the Retention Levees Experimental Area and numerous small reservoirs like Jack Rabbit Reservoir and Aitken Reservoir. This infrastructure suggests a period of intensive land use and agricultural experimentation within the Fort Peck Game Range. Drainage patterns are shaped by Willow Creek and Sage Hen Creek, which cut through the Flats toward the southern boundary. Small-scale industrial activity is evidenced by the Baldy Pit, while various gaging stations and retention structures like Archambeault Retention Res reflect a managed hydrologic environment typical of the era's conservation and ranching efforts.