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2023 Map of Twin Buttes

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

USGS Topo · Published 2023

About this map

Twin Buttes rises above a landscape defined by an extensive network of water management features in this high desert region of Harney County. The distribution of reservoirs and waterholes suggests a landscape heavily adapted for livestock and rangeland use, with named sites such as Mammoth Waterhole, Tooney Waterhole, and Griffen Waterhole scattered across the basin. Large-scale topographic features like Jackass Mtn and the prominent Black Rim provide significant vertical relief against the surrounding flats.

Transportation through this arid terrain is limited to established routes such as Catlow Rd and the Foster Flat-Harney Lake Rd, which connect the numerous man-made catchments like Long Canyon Reservoir and Second Lake Reservoir. The presence of ephemeral drainages like Jackass Creek and a dense concentration of reservoirs—including Rattlesnake Reservoir and Little Rattlesnake Reservoir—illustrates the critical importance of water storage in this section of the Oregon outback.