Pacific Region Offices in California Colvis Torrance Sonny Bono Salton Sea Cibola NWR (Southwest Region) Carlsbad FWO Cochella Valley NWR San Diego NWR Sweetwater Marsh NWR Tijuana Slough NWR Seal Beach NWR San Diego Complex Imperial NWR (Southwest Region) Havasu NWR (Southwest Region) Hopper Mountain Ventura FWO Bitter Creek NWR Santa Maria Kern NWR Pixley NWR Blue Ridge NWR Salinas River NWR Grasslands NWR Ellicott Slough NWR Merced NWR San Luis NWR Don Edwards San Francisco Bay San Joaquin River NWR Burlingame Farallon NWR Stockton FRO Marin Islands NWR Stone Lakes NWR Sacramento FWO Colusa NWR Sutter NWR Butte Sink NWR Delevan NWR Willow Creek - Lurline NWR Sacramento Sacramento River NWR Red Bluff FWO Coleman NFH Weaverville Livingston Stone NFH Humboldt Bay NWR Arcata FWO Klamath River Tule Lake NWR Modoc NWR Clear Lake NWR Lower Klamath NWR Yreka FWO