2014 Map of Antelope Pass

About this map

Antelope Pass anchors this high plains landscape in Valley County, where the transition between drainage systems defines the terrain. The topography is marked by a complex network of coulees, including the wide Harry Coulee and Riggin Coulee, which cut through the undulating prairie. Water features are seasonal and intermittent, typical of this arid region, with Rock Creek and Dry Coulee providing the primary channels for runoff. Lake Grable sits as a notable catchment in the northwestern portion of the quadrangle. Human impact is sparse, represented primarily by long-established cattle routes and rural infrastructure like Hinsdale Rd N and Rock Creek Rd, which follow the natural contours of the land rather than a rigid grid. This survey provides a clear view of the ranching corridors and watershed patterns essential to understanding the historic use of the northeastern Montana range.