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1967 Map of Dunlap Sill, 1971 Print
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1967 Map of Dunlap Sill

USGS Topo · Published 1971

About this map

Dunlap Sill rises across this high desert landscape along the border of De Baca and Chaves Counties, defining a region shaped by a sparse ranching economy during the mid-1960s. The map illustrates a network of essential water infrastructure critical for livestock in a semi-arid environment, including Steel Windmills, the Barnhill Windmill, and Pollards Windmill. Named water sources like Clardy Tank and Roosevelt Tanks are scattered throughout the terrain, connected by the drainage of Wylie Draw and Huggins Draw. Human habitation is represented by isolated sites such as the Martin Ranch and Rock House, while the presence of Gravel Pits in the southwest suggests localized extraction. This survey preserves the exact locations of these family-named landmarks and water catchments just as they functioned before modern developments, providing an intricate view of the rural New Mexico backlands.

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Map Details

Date Portrayed1967
Date Published1971
PublisherU.S. Geological Survey
Map TypeTopographic
Scale1:24,000
Physical Dimensions22.1 x 26.9 inches

Editions of this 1967 Dunlap Sill Map

Historical Maps of Chaves County Through Time

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Source Details

SourceU.S. Geological Survey
CopyrightPublic Domain