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1950 Map of Greenville

Name: 1950 Topographic Map of Greenville
Creator: U.S. Geological Survey
Published: 1952
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1952

About this map

Indian Valley serves as the focal point of this mid-century survey, where the Western Pacific RR snakes along the canyon walls of Indian Creek. The area’s complex industrial and social history is visible through the concentration of mining operations and tribal lands, including the Greenville Rancheria and Taylorsville Rancheria. Mining activity is particularly dense in the northern and southern ridges, where the Engel Mine, Ruby Mine, and King Solomon Mine reflect a century of extraction.

Settlements like Greenville and Crescent Mills anchor the valley floor, supported by infrastructure such as the Indian Valley Hot Springs and the Round Valley Reservoir. The mapping, based on 1947 aerial photography, captures the transition of the Lassen National Forest and Plumas National Forest before modern expansion, preserving the locations of the Indian Mission and the remote Keddie Pk Lookout.