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1954 Map of Lisbon Valley, 1961 Print
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1954 Map of Lisbon Valley

USGS Topo · Published 1961

About this map

Lisbon Valley serves as the central corridor for this mid-century survey of the high desert along the Utah-Colorado border. Published in 1961 with cooperation from the Atomic Energy Commission, the map reflects a landscape defined by ranching and mineral exploration. Working cattle operations such as Woods Ranch and Patterson Ranch are established near natural landmarks like Big Indian Rock and the prominent breach of Lisbon Gap. The topography is marked by significant elevation changes, from the heights of Island Mesa and Summit Point down to the complex drainage systems of Big Indian Wash and Bullhorn Wash. Educational infrastructure is represented by the West Summit School, located along the primary Summit Road. The inclusion of various labeled prospects and shafts highlights the era’s focus on the region's geological potential, particularly in the uranium-rich sectors of San Juan County.

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Map Details

Date Portrayed1954
Date Published1961
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:62,500
Physical Dimensions17 x 21 inches

Editions of this 1954 Lisbon Valley Map

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain