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1987 Map of Alcatraz Island
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1987 Map of Alcatraz Island

USGS Topo · Published 1987

About this map

Clayton Valley and its industrial mineral landscape dominate this 1987 survey, where expansive Evaporator Ponds indicate the active brine processing central to this part of Esmeralda County. The desert terrain is marked by distinctive features such as Alcatraz Island and Angel Island, which rise from the dry lake bed. Resource extraction is a primary theme of the era, evidenced by numerous Prospects and Borrow Pit excavations scattered across the eastern slopes of Clayton Ridge. Primitive 4wd tracks provide the only access through this arid environment, connecting the drainage of Lida Wash to the shifted sands of the Sand Dunes. The map documents a period of specialized mining and geothermal interest in the Great Basin, focusing on the infrastructure required to harness the valley's geological potential.

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Map Details

Date Portrayed1987
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22 x 27.1 inches

Editions of this 1987 Alcatraz Island Map

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

Historical Maps of Esmeralda County Through Time

308 maps found

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain