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1969 Map of Gregerson Basin

Name: 1969 Topographic Map of Gregerson Basin
Creator: U.S. Geological Survey
Published: 1973
License: https://creativecommons.org/publicdomain/mark/1.0/

USGS Topo · Published 1973

About this map

Delamar Mountains dominate the eastern reaches of this 1969 field-checked survey, creating a dramatic topographical divide in Lincoln County. To the west, the landscape drops into the broad Gregerson Basin and the expansive Delamar Valley, reflecting the classic basin-and-range geography of southern Nevada. Evidence of remote ranching and land use is present through the identification of a Corral and two vital Water Tanks positioned to catch runoff in this arid environment.

Water sources are scarce but definitive on this map, including Jumbo Spring and the Pony Reservoir located at the southern edge of the basin. An extensive network of Jeep Trails provides the primary means of navigating the terrain, connecting the mountains to the dry beds of Jumbo Wash. This survey captures the region after photogrammetric mapping in 1967, showing the land as it was managed for grazing and transit in the late 1960s.