1. Map of Antelope Valley-East Kern Water Agency area, California showing ground-water subunits and areas, location of wells, and water-level contours for spring, 1984 / [cartographic material] Yale Public content 1986. 2002-06-01T04:00:00Z. 2023-11-01T03:01:50Z. Geological Survey (U.S.). The Survey ; Open-File Services Section, Western Distribution Branch. English. cartographic image. Public. California, Kern County, and Los Angeles County.