Material about the October 2006 designation by the U.S. Fish and Wildlife Service of "154,834 acres in California's East Bay as critical habitat for the federally threatened Alameda whipsnake. Areas designated as critical habitat include portions of Alameda, Contra Costa, Santa Clara and San Joaquin counties." Includes maps, background about the Alameda whipsnake, and the recovery plan. From the Sacramento Fish and Wildlife Office.