Geological Survey (U.S.)Relief shown by shading and spot heights.; "Compiled from plane table sheets by John S. Brown ... Relief shading by John H. Renshawe."; "Watering-place survey by John S. Brown. Surveyed in 1917-1918."; Map is plate 7 from Water-supply paper 490-A.on sheet 67 x 47 centimetersJPEGUMN_ALMA:9974847375101701engU.S. Geological Survey (Washington, D.C)PublicRelief map of the eastern part of the Salton Sea region, Calif., showing desert watering placesMapsCalifornia1920University of Minnesota