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1962 Map of Illinois Hill, 1981 Print
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1962 Map of Illinois Hill

USGS Topo · Published 1981

About this map

Mining operations define the character of this Mariposa County landscape, where the foothills are etched with a high density of named claims and historical extraction sites. The concentration of workings, including the Pocahontas Mine, Great Northern Mine, and the Klondike Mine, speaks to the region's intense mineral exploration that continued through the mid-20th century. Terrain features like Illinois Hill and Cow and Calf Mtn rise above a drainage system fed by Mariposa Creek and White Rock Creek, while the presence of the White Rock Cem and White Rock Fire Control Sta provides a window into the small community infrastructure that supported the local population. Along the southern reaches, more isolated operations such as the San Jose Mine and Goodview Mine are accessible by a network of unimproved roads and the Preston Road, marking a transition toward the open lands near Dutchman Creek.

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Map Details

Date Portrayed1962
Date Published1981
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 26.8 inches

Editions of this 1962 Illinois Hill Map

Historical Maps of Mariposa County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain