2014 Map of Petty Mountain

About this map

Clark Fork winds through the northern reaches of this landscape, defining the corridor where the settlements of Alberton and Lothrop are situated along Highway 10 W. The terrain is dominated by the steep elevations of the Lolo National Forest, rising sharply toward Petty Mtn and the Grave Creek Range. This 2014 survey reveals a network of forest roads and trails, such as Old Petty Creek Rd and Outback Trl, that navigate the drainages of Petty Cr and Eds Cr. High-elevation water features like Moulton Reservoir Number Two and Martin Spring are tucked away in the gulches, illustrating the complex hydrology of these protected mountains. The map also records the precise administrative boundaries between Mineral and Missoula counties as they cut across the rugged ridges of Ed's Ridge and Peppard Gulch.