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1987 Map of Lisbon Valley
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1987 Map of Lisbon Valley

USGS Topo · Published 1987

About this map

Lisbon Valley forms a dramatic northwest-southeast corridor through the high plateau country of San Juan County, revealing a landscape defined by industrial extraction and stark geological landmarks. The 1987 survey identifies numerous mining operations and prospects, including the Louise Mine and Cub Mine, as well as a specific Mine Shaft located near the southern boundary. This concentration of features underscores the area's significance for mineral exploration during the late 20th century. The terrain is bounded by prominent elevations such as Middle Mesa to the east and the rising slopes of Three Step Hill to the south. Water sources are scarce but critical, marked by the presence of Lisbon Spring and the drainage network of East Coyote Wash, Big Indian Wash, and the ephemeral Little Dry Wash. Big Indian Rock stands as a notable landmark amidst the complex topography of canyons and washes like Spiller Canyon and Lisbon Canyon.

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Map Details

Date Portrayed1987
Date Published1987
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.8 x 26.7 inches

Editions of this 1987 Lisbon Valley Map

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

Historical Maps of San Juan County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain