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2017 Map of Lone Rock Creek

Name: 2017 Topographic Map of Lone Rock Creek
Creator: U.S. Geological Survey
Published: 2017
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2017

About this map

Lone Rock Creek carves through this high-elevation landscape along the border of Gilliam and Morrow counties. The terrain is defined by a series of deep drainages including McPherson Canyon and Sweetmilk Canyon, which feed into the larger water systems of the Columbia River basin. At Pine Ridge, the elevation reaches its peak near the southern edge of the map, overlooking the headwaters of the Needle Fork.

Remote access is provided by unpaved corridors like Hale Ridge Rd and Lost Valley Rd, which follow the natural contours of the ridges to navigate between the steep-walled canyons. The hydrography of the area is intricate, with numerous seasonal and perennial forks such as Lob Fork and E-Fork Threemile Cr dissecting the plateaus. This map provides a clear view of the ranching and timber geography of north-central Oregon in the early twenty-first century.