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1954 Map of Blackrock Mtn, 1957 Print
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1954 Map of Blackrock Mtn

USGS Topo · Published 1957

About this map

Black Rock Mtn Lookout stands as a primary vantage point in this mid-century survey of the California wilderness, where the boundaries of the Trinity National Forest, Six Rivers National Forest, and Mendocino National Forest converge. The landscape is defined by the deep canyons of the South Fork Trinity River and the Middle Fork Eel River, separated by a complex network of high ridges including Jones Ridge and Fisher Ridge.

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Map Details

Date Portrayed1954
Date Published1957
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions16.7 x 20.8 inches

Editions of this 1954 Blackrock Mtn Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain