USGS 1950s mapping field camp

Författare/Upphovsman:

US Geological Survey

Kreditera:

USGS Historical Photographs: Mapping Field Camp: http://online.wr.usgs.gov/outreach/historicPhotos/enlarged/mapping_camp_1950.html

Kort länk:

https://sewiki.info/b/5477

Källa:

Wikimedia Commons

Upplösning:

2672 x 1661 Pixel (3664849 Bytes)

Beskrivning:

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.)

Licens:

Public domain