File:USGS 1950s mapping field camp.jpg
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Summary
| Description |
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.)
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| Date | circa 1950-1955 |
| Source | USGS Historical Photographs: Mapping Field Camp: http://online.wr.usgs.gov/outreach/historicPhotos/enlarged/mapping_camp_1950.html |
| Author | US Geological Survey |
Licensing
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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. български | català | Deutsch | English | español | eesti | suomi | français | galego | italiano | 한국어 | македонски | മലയാളം | Nederlands | polski | português | русский | Türkçe | 中文 | 中文（简体） | +/− |
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