•ALTON SEA 



PtATl 7 



t^.^e:fim!''J-''^^''<'vaiKf~,f^ffiii/l^l^jia^imtipem..! >.^ «^.:<'.- 



^ 



A. San Jacinto Peak with outwash and line of Snow Creek. Seen from San Gorgonio Pan. 



B. FoolhilU of Santa Rosa Range with Sandy Alluvium and Dense Mesquite Formation. 



