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1968 Map of Porcupine Ridge

Name: 1968 Topographic Map of Porcupine Ridge
Creator: U.S. Geological Survey
Published: 1979
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1979

About this map

Porcupine Ridge dominates this 1968 study, marking a high divide along the border between Summit County, Utah and Uinta County, Wyoming. The landscape is defined by its drainage systems, where seasonal and perennial waters such as Yellow Creek and Willow Creek flow through the high country. In the north, Barker Reservoir serves as a prominent water feature near the county line, while Chalk Creek winds through the southern portion of the sheet.

Remote and sparsely developed, the area is navigated primarily by a network of Jeep Trails and primitive roads that trace the valleys and ridges. A modern Pipeline cuts across the southeastern terrain, indicating the encroachment of infrastructure into the Basin. This map is an essential record for those tracing land use and topography at the intersection of these two states, capturing the high-elevation terrain from Porcupine Mtn to the surrounding draws and basins.