Geohydrology of the Yuma area, Arizona and California, in Water resources of Lower Colorado River - Salton Sea area

Mineral District, Water Resources, Groundwater, Surface Water, Hydrology, Hydrogeology, Geomorphology, Areal, Structure, Stratigraphy, Subsurface, Map, Bedrock, Geochemical Survey, Geochronology, conglomerate of Chocolate Mountains - Miocene/Pliocene/Pleistocene, Kinter Fm - Oligocene/Miocene - mid-Tertiary volcanic assemblage, Bouse Fm - Miocene/Pliocene - Gila assemblage, Bouse marl, basaltic andesite or basalt of Chocolate Mountains, flows and vent tuff of Laguna Mountains, [Adair Park redbeds][redbeds of Adair Park] - Oligocene(?) - Whitetail assemblage, Adair Park breccia - Oligocene/Miocene, Laguna volcanics - Oligocene, Yuma granitic gneiss - Middle Proterozoic(?), (Gila Mtns.(?) granite),