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1951 Map of Onion Valley
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1951 Map of Onion Valley

USGS Topo · Published 1951

About this map

Middle Fork Feather River carves a deep canyon through this portion of the northern Sierra Nevada, where the 1951 landscape is defined by a legacy of gold and mineral extraction. The map reveals a transition toward post-mining industry, with numerous sites such as the White Pine Chrome Mine and the Wilson-Gomez Mine listed as inactive. Settlements like McCarthy Bar and Rich Bar cling to the riverbanks, while higher elevations within the Plumas National Forest show the footprint of earlier habitations at Onion Valley (Site) and Last Chance (Site). The terrain is crisscrossed by historic routes like the Gibsonville Trail and Claremont Trail, which once served remote outposts and diggings. Evidence of hydraulic and placer mining remains visible at Mister Diggings, illustrating the intensive labor that shaped the drainages of Onion Valley Creek and the South Fork Feather River before the mid-20th century.

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Map Details

Date Portrayed1951
Date Published1951
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.9 x 26.8 inches

Editions of this 1951 Onion Valley Map

This is the sole edition of this map. No revisions or reprints were ever made.

Historical Maps of Plumas County Through Time

177 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain