San Pablo Bay National Wildlife Refuge San Pablo Bay National Wildlife RefugeStation reference point Navigable Sloughs (Open)55 acres San Pablo Bay (Open)8,224 acres Cullinan Ranch Unit (Special regs)1,034 acres Dickson Ranch Unit (Special regs)806 acres Tolay Creek (Special regs)310 acres Cullinan Ranch Closed (Closed)175 acres Detjen Unit (Closed)429 acres Dickson Ranch Closed (Closed)293 acres Figueras Unit (Closed)505 acres Haire Ranch Unit (Closed)2,091 acres Lower Tubbs Unit (Closed)249 acres Navy Unit (Closed)2,501 acres North Parcel Unit (Closed)259 acres Prati Unit (Closed)35 acres San Pablo Bay Closed (Closed)2,473 acres Sears Point Unit (Closed)485 acres Sonoma Baylands Unit (Closed)562 acres