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2018 Map of Open A Ranch

Name: 2018 Topographic Map of Open A Ranch
Creator: U.S. Geological Survey
Published: 2018
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 2018

About this map

Thunder Basin National Grassland dominates this landscape in eastern Campbell County, where the high plains are carved by a complex network of ephemeral drainages and creeks. The namesake Open A Ranch is situated south of Keeline Rd, reflecting the large-scale cattle ranching operations that define this region of Wyoming. The hydrology of this arid environment is highlighted by numerous man-made water sources and natural depressions, including the Spath Reservoir, Smith Reservoir, and The Robb Reservoir, alongside the Hay Lakes to the northwest.

The drainage patterns of Black Thunder Cr and Cottonwood Cr illustrate the subtle topography of the basin. Roads like Little Thunder Rd provide limited access across the wide tracts of public and private land, which are further divided by the grid of the Public Land Survey System, including t45n r70w and t44n r69w. This survey is particularly useful for understanding modern land management and ranching infrastructure within the national grassland.