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1916 Map of Bachelor Valley
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1916 Map of Bachelor Valley

USGS Topo · Published 1916

About this map

Bachelor Valley and the expansive historical tracts of the Thompson Rancho and Rancheria Del Rio Estanislao define this central California landscape at the time of the 1913 field survey. The map reveals a rural topography organized around the Mt Diablo Base Line, which serves as a primary surveying datum for the region. Education was decentralized in this era, as evidenced by the distribution of the Black Hill School, Bachelor Valley School, and Rosedale School across the drainage basins of Rock Creek and Hoods Creek. Industrial activity is represented by the Quail Hill Mine in the northeast, while the small settlement of Eugene sits near the crossing of Littlejohns Creek, illustrating the early 20th-century transition from land-grant ranchos to established rural communities.

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Map Details

Date Portrayed1916
Date Published1916
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:31,680
Physical Dimensions16.4 x 19.7 inches

Editions of this 1916 Bachelor Valley Map

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

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain