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2017 Map of Cahill Mountain

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

USGS Topo · Published 2017

About this map

Patit sits along the northern edge of this high-elevation landscape, where the grain fields and drainage systems of Columbia County meet the rising timberline. The area is defined by a dense network of steep drainages, including Cougar Canyon, Hatley Gulch, and Gates Gulch, which feed the various forks of Patit Cr. This complex topography was managed through a system of early ridge-running roads like Kendall Skyline Rd and Skyline Dr, which provided access to remote homesteads and timber resources.

Within the southern half of the map, the Umatilla National Forest boundary marks a shift from private agricultural lands to protected wilderness. Features like Pioneer Memorial Park and the namesake Cahill Mountain highlight the region's importance for local recreation and historical identification. The map documents a rural environment where land use is dictated by the sharp relief of ridges like Starvout Ridge and the deep hollows such as Lewis Hollow that separate them.