ultraviolet index in Threemile Slough (1.6 mi.) | ultraviolet index in False River (2.7 mi.) | ultraviolet index in Rio Vista (4 mi.) | ultraviolet index in Davis Slough (6 mi.) | ultraviolet index in Georgiana Slough Entrance (6 mi.) | ultraviolet index in Irish Landing (Sand Mound Slough) (7 mi.) | ultraviolet index in Steamboat Slough (Snug Harbor Marina) (7 mi.) | ultraviolet index in Prisoners Point (7 mi.) | ultraviolet index in Antioch (8 mi.) | ultraviolet index in Collinsville (9 mi.) | ultraviolet index in Terminous (South Fork) (10 mi.) | ultraviolet index in Wards Island (Little Connection Slough) (11 mi.) | ultraviolet index in Montezuma Slough (11 mi.) | ultraviolet index in Pittsburg (New York Slough) (11 mi.) | ultraviolet index in Orwood (Old River) (12 mi.) | ultraviolet index in Meins Landing (Montezuma Slough) (13 mi.) | ultraviolet index in Mallard Island Ferry Wharf (13 mi.) | ultraviolet index in New Hope Bridge (14 mi.) | ultraviolet index in Bradmoor Island (15 mi.) | ultraviolet index in Bishop Cut (Disappointment Slough) (15 mi.)