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2023 Map of Twelvemile Reservoir

Name: 2023 Topographic Map of Twelvemile Reservoir
Creator: U.S. Geological Survey
Published: 2023
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2023

About this map

Twelvemile Reservoir and the adjacent Twelvemile Creek anchor this high-desert landscape along the border of Crook and Harney Counties. This contemporary survey illustrates the complex water management required in this arid environment, featuring scattered water sources such as Roland Lake, Mayme Spring, and the uniquely named Old Lakebed Waterhole. The terrain is defined by dramatic escarpments and elevations, including Grindstone Rim, Coffee Butte, and Walker Ridge.

Transportation through these remote uplands is facilitated by established routes like Grindstone Rd and Price-Twelvemile Rd, which connect the various drainages of Black Snag Creek and Norcross Creek. The map provides a clear picture of the modern township and range grid system used for land management across the Three Buttes and Corral Ridge areas, serving as a primary reference for the region's current hydrology and topography.