Revised Designation of Critical Habitat for the Sonoma County Distinct Population Segment of California Tiger Salamander; Final Rule

We, the U.S. Fish and Wildlife Service (Service), designate revised critical habitat for the Sonoma County distinct population segment of the California tiger salamander (Ambystoma californiense) (Sonoma California tiger salamander) under the Endangered Species Act of 1973, as amended (Act). In total, approximately 47,383 acres (19,175 hectares) of land are being designated as revised critical habitat for the Sonoma California tiger salamander.