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1972 Map of Mt. Ingalls

Name: 1972 Topographic Map of Mt. Ingalls
Creator: U.S. Geological Survey
Published: 1974
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1974

About this map

Plumas National Forest dominates this topographic study, revealing a landscape shaped by industrial mining and natural drainage within the High Sierra. The northern portion of the map highlights the extensive footprint of the Walker Mine Ruins Tailings and the associated Tailings Pond, signifying the area's history as a significant copper producer before operations ceased. A Dismantled Tramway cutting across the terrain serves as a physical reminder of the logistical efforts required to transport ore through this complex system of ridges and canyons.

Water management and high-altitude geography are central to this 1970s survey, from the Grizzly Ridge divide to the headwaters of the South Branch Middle Fork Feather River. Human presence is marked by isolated sites like the Lovejoy (Site) and a solitary Grave near Little Grizzly Creek. Recreation and transit are evident through a network of Jeep Trails and a Pack Trail that navigate the slopes between Little Summit Lake and Nye Meadows.