Designation of Critical Habitat for the Sonoma County Distinct Population Segment of California Tiger Salamander (Ambystoma californiense): Proposed rule; public hearing announcement.

We, the U.S. Fish and Wildlife Service (Service), propose to designate critical habitat for the Sonoma County distinct population segment (DPS) of the California tiger salamander (Ambystoma californiense) under the Endangered Species Act of 1973, as amended (Act). In total, approximately 74,223 acres (30,037 hectares) are being proposed for designation as critical habitat. The proposed critical habitat is located in Sonoma County, California.