California. Salton Sea quadrangle (60'), 1943

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