2011 Map of Prairie Reef

About this map

Prairie Reef Lookout stands as the central landmark in this high-altitude landscape within Lewis and Clark County, Montana. The terrain is defined by a network of drainage systems, most notably the West Fork South Fork Sun River, which gathers numerous tributaries as they descend from prominent heights. To the west, the topography rises toward Red Butte and the secluded Hermit Lake, while the southern reaches are anchored by Junction Mountain. The map illustrates a complex hydrography where names like Black Bear Creek, White Bear Creek, and Grizzly Gulch reflect the wild character of the region. This 2011 survey records the precise flow of the Ahorn Creek system, including its Lost Fork and East Fork, providing a clear look at the headwaters that shape this part of the Rocky Mountain Front.