Loading map...

1986 Map of Round Mountain

Name: 1986 Topographic Map of Round Mountain
Creator: U.S. Geological Survey
Published: 1987
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1987

About this map

Round Mountain and the Bobcat Hills dominate this arid borderlands landscape, where Greenlee County, Arizona meets Hidalgo County, New Mexico. The 1980s terrain is defined by a sophisticated network of small-scale water management features, including Horseshoe Terrace Dam, Stateline Dam, and the series of Dagger Dam No 1, Dagger Dam No 2, and Dagger Dam No 3. These structures catch intermittent runoff from drainages like Coyote Wash and Thompson Draw, essential for sustaining the ranching economy represented by the Lazy B Ranch Landing Strip.

Transport and infrastructure follow the natural contours of the canyons and basins. The Southern Pacific Railroad cuts through the northeast, supported by the Railroad Well, while the rugged southwest is carved by Gillespie Canyon and Grayhorse Canyon. This survey provides a precise look at the jurisdictional boundary line and the ranching infrastructure that persisted in the late twentieth century.