ultraviolet index in False River (3 mi.) | ultraviolet index in Irish Landing (Sand Mound Slough) (3 mi.) | ultraviolet index in Prisoners Point (6 mi.) | ultraviolet index in Threemile Slough Entrance (6 mi.) | ultraviolet index in Orwood (Old River) (7 mi.) | ultraviolet index in Threemile Slough (7 mi.) | ultraviolet index in Wards Island (Little Connection Slough) (8 mi.) | ultraviolet index in Georgiana Slough Entrance (8 mi.) | ultraviolet index in Borden Highway Bridge (Old River) (9 mi.) | ultraviolet index in Antioch (10 mi.) | ultraviolet index in Rio Vista (10 mi.) | ultraviolet index in Terminous (South Fork) (10 mi.) | ultraviolet index in Borden Highway Bridge (Middle River) (12 mi.) | ultraviolet index in Steamboat Slough (Snug Harbor Marina) (12 mi.) | ultraviolet index in Blackslough Landing (12 mi.) | ultraviolet index in Bishop Cut (Disappointment Slough) (12 mi.) | ultraviolet index in Collinsville (12 mi.) | ultraviolet index in Holt (Whiskey Slough) (12 mi.) | ultraviolet index in Pittsburg (New York Slough) (13 mi.) | ultraviolet index in Montezuma Slough (14 mi.)