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2011 Map of Petty Mountain

Name: 2011 Topographic Map of Petty Mountain
Creator: U.S. Geological Survey
Published: 2011
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2011

About this map

Lothrop sits along the northern bend of the Clark Fork, serving as a focal point for this mountain landscape where river and rail infrastructure historically shaped the narrow valleys. The rugged interior is defined by several resource extraction sites, including the Inverness Group Mine near Spring Gulch and the Teller Barite Mine further south. These locations suggest a history of prospecting and mineral interest that stretches beyond the main waterways into the steep gulches of the surrounding terrain.

Water management and ranching operations appear alongside the drainage of Petty Creek, which flows past the Circle S Ranch. To the east, the massif of Petty Mountain overlooks a network of forest roads and trails such as Outback Trl and Old Petty Creek Rd. Modern infrastructure is represented by the Frenchtown Rural Fire Dist Sta 5 at the northern edge, indicating the ongoing management of this transition between the river corridor and the backcountry.