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1991 Map of Porcupine Ridge
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1991 Map of Porcupine Ridge

USGS Topo · Published 1991

About this map

Porcupine Ridge and Porcupine Mtn dominate this high-altitude landscape along the Utah-Wyoming border, where industrial resource extraction meets a complex watershed. The map reveals an extensive Oil Field infrastructure, characterized by a network of Oil Wells, a Pipeline, and numerous Drill Holes that signal the region's economic focus during the late 20th century.

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Map Details

Date Portrayed1991
Date Published1991
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions21.8 x 26.7 inches

Editions of this 1991 Porcupine Ridge 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