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1962 Map of Penon Blanco Peak

Name: 1962 Topographic Map of Penon Blanco Peak
Creator: U.S. Geological Survey
Published: 1963
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1963

About this map

The gold-bearing terrain of the California Mother Lode is prominent across this survey of the Tuolumne and Mariposa county line. Mining activity is heavily documented through numerous named workings, including the Solambo Mine, Buzzard Roost Mine, and New Years Mine, which dot the landscape from the Oat Hills to the slopes above Piney Creek. The rugged geography is defined by high points like Penon Blanco Peak and the steep walls of Piney Ridge.

Water management and transportation systems reflect the region's mid-century development. The Merced River Railroad Grade follows the canyon floor above Lake Mc Clure, showing the legacy of rail infrastructure before modern reservoir levels were established. Small settlements and local landmarks, such as Blanchard, the Granite Spring Cemetery, and the Picture Gallery, provide essential touchstones for genealogists and local historians researching these foothill communities.