1911. 2011-05-26T15:58:17Z. 2015-10-21T14:59:59Z. Geological Survey (U.S.). U.S. Geological Survey. English. Public. Burlington (Wash.), Camano Island (Wash.), Island County (Wash.), Marysville (Wash.), Mount Vernon (Wash.), Port Susan (Wash.), Skagit Bay (Wash.), Skagit County (Wash.), Skagit River (B.C. and Wash.), Snohomish County (Wash.), Stanwood (Wash.), Tulalip Indian Reservation (Wash.), Washington (State), and Whidbey Island (Wash.).