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1991 Map of Porcupine Ridge

Name: 1991 Topographic Map of Porcupine Ridge
Creator: U.S. Geological Survey
Published: 1991
License: https://creativecommons.org/publicdomain/mark/1.0/

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.

Hydrological features are abundant, with water flowing through Yellow Creek, Chalk Creek, and Willow Creek, while the Barker Reservoir sits at the northern edge. The intersection of Summit and Uinta Counties creates a geopolitical divide across this terrain of unnamed peaks and named drainages like Thief Creek and Howard Creek. This survey captures the transition from traditional land use to modern industrial utility, visible through scattered 4wd tracks and a solitary Radio Tower.