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File:USGS 1950s mapping field camp.jpg


English: A typical USGS mapping field camp. Note the helicopter parked near the trailers. Helicopters were first used by the USGS for topographic mapping in Death Valley in 1948. (Description from USGS.)
Date circa 1950-1955
Source USGS Historical Photographs: Mapping Field Camp:
Author US Geological Survey


Public domain This image is in the public domain because it contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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