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1966 Map of Calcutta Lake

Name: 1966 Topographic Map of Calcutta Lake
Creator: U.S. Geological Survey
Published: 1969
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1969

About this map

Sheldon National Antelope Refuge dominates the eastern landscape of this high desert region in northern Washoe County. The 1960s terrain is characterized by a series of significant depressions and seasonal water bodies, most notably the wide expanse of Calcutta Lake and the southern Middle Lake. This arid environment necessitated the establishment of remote outposts such as Calcutta Ranch and Wimer Place, which appear as small human imprints alongside the vast drainage of Long Valley.

Strategic water sources including Antelope Spring and Sage Hen Springs are documented across the desert floor, often connected by a single Jeep Trail. On the eastern ridges, the Refuge Headquarters sits near a prominent Lookout Tower, overlooking the sharp descent into Cottonwood Canyon. The map preserves the specific locations of livestock infrastructure and early conservation efforts in this isolated corner of Nevada.