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1967 Map of Dunlap Sill

Name: 1967 Topographic Map of Dunlap Sill
Creator: U.S. Geological Survey
Published: 1982
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1982

About this map

Poquito Mesa and the surrounding drainage basins of Chaves County define this high-desert landscape in the late 1960s. The map reveals a highly specialized ranching infrastructure designed for water management in an arid environment, characterized by a dense network of windmills and catchment systems. Vital water sources like Gyp Spring and Hogue Well are recorded alongside family-named landmarks such as the Martin-Ranch and the Rock House.

Surface water movement is traced through Wylie Draw and Huggins Draw, which feed into various man-made reservoirs like Roosevelt Tanks and the Old Fork Tank. The presence of Steel Windmills and the Red Windmill further underscores the mechanical adaptations required for livestock survival on the plains. This 1982 photorevised edition also notes industrial activity through scattered Gravel Pits and identifies the political boundary between De Baca Co and Chaves Co.