The Bitter Creek National Wildlife Refuge is located in the foothills of the southwestern San Joaquin Valley in Kern County, California. The refuge is one of four units of the Hopper Mountain National Wildlife Refuge Complex for California condors.California condorsElevations on the Refuge range from 1600to. Purchased to protect dwindling California condor foraging and roosting habitat in 1985, the 14097acre refuge is the site where the last wild female condor was trapped in 1986.Today, the reintroduced condors feed and roost on the refuge. The refuge is an integral part of the Service's condor monitoring activities. The most notable physical features of the refuge are the San Andreas Fault, which bisects the refuge, and the dramatic Bitter Creek Canyon.As of July 2014, there is a total population of 437 condors living in sites in California, Baja California and Arizona. This includes a wild population of 232 and a captive population of 205. 68 free-flying Condors are managed by the US Fish & Wildlife Service in Southern California.Other speciesIn addition to the California condor, the Bitter Creek Refuge provides grassland, oak woodland, chaparral, pinion pine/juniper/oak woodland, and riparian and wetland habitat for federally listed endangered San Joaquin kit fox, blunt-nosed leopard lizard, giant kangaroo rat, and species of Federal concern such as the western spadefoot toad, the western horned lizard and the tri-colored blackbird.