1970 Map of Rocky Coulee SW

About this map

The Marias River carves a deep, winding path through the southern portion of this landscape, its steep banks and complex terrain contrasting sharply with the northern upland plains. This 1970 field check was conducted as part of the Department of the Interior's Missouri River Basin development program, documenting a territory defined by high-plains drainage systems. Long drainage features such as Black Coulee, Flat Coulee, and Eightmile Coulee shape the land, directing seasonal runoff toward the river. A lone Gaging Sta stands along the riverbank, an essential marker for monitoring the water levels of this critical prairie waterway. The map provides a detailed view of the remote topographical contours and the network of fence lines and unimproved roads that connected the scattered agricultural sections of Hill County during the early 1970s.