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2015 Map of Mount Ingalls

Name: 2015 Topographic Map of Mount Ingalls
Creator: U.S. Geological Survey
Published: 2015
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2015

About this map

Greenhorn sits at the southwestern edge of this high-elevation landscape, where the headwaters of Greenhorn Cr and Estray Cr begin their descent. The map reveals a complex drainage network within the Plumas National Forest, dominated by the towering heights of Mount Ingalls and Turner Ridge in the northeast. This 2015 survey provides a modern look at historical land use, particularly through industrial features like the Walker Mine Tailings Reservoir and scattered evidence of resource extraction at various Prospect sites.

Deep ravines and ridges define the geography, from the prominent Grizzly Ridge to the secluded Nye Meadows. The transition from the rugged peaks of Mt Ingalls down to the relatively level Grizzly Valley illustrates the varied terrain of the northern Sierra. Transportation in this area is primarily managed through forest routes such as Ward Creek Way and Greenhorn Rd, which provide access to Little Summit Lake and the remote Joy Springs area.