Prepared un the direction of the Chief of Engineers, U.S. Army, 1942. Compiled by 29th Engineers, U.S. Army, from maps of Metropolitan Water District, scale 1:120,000, U.S. Geological Survey "Salton Sea and Vicinity", scale 1:62,500 and "Salton Sink", scale 1:500,000. Road data, culture and drainage revised from Tandem T-3A (5 lens) aerial photographs, road maps of Riverside and Imperial Counties, road maps of the Bureau of Public Roads, maps of Imperial Irrigation District and Field reconnaissance by 29th Engineers, U.S. Army. Photography by Flight "F" 1sr Photographic Squadron, U.S. Army, 1940. Polyconic Projection, North American 1927 Datum.
Type
image
Format
Scale: 1:250,000. Map type: TF. Unknown projection Horizontal datum: unknown Grid note: none Vertical datum: mean sea level Contour interval on land and off shore 500 feet. image/tiff topographic maps maps contour maps relief maps quadrangle maps
Salton Sea Riverside County Imperial County California Western United States United States Geological Survey U.S. Geological Survey USGS 60 minute 1:250,000 scale Polyconic
Time Period
1940-1942
Place
33.00000,-116.00000 34.00000,-116.00000 34.00000,-115.00000 33.00000,-115.00000 California Salton Sea USA
Source
University of Southern California [Contributing entity]
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