This chart is NOT compatible with GPSMAP 722sx, 7612xsv, 7610xsv, 922xs, Echomap Plus series or units with the latest update software/firmware. Provides detailed coastal coverage of the U.S. including the East Coast from Key West, FL to Canadian border and the West Coast from Puget Sound to the Mexican border; Alaska; Hawaii and major inland rivers; the U.S. Gulf Coast to the Mexican border and the Mexican Gulf Coast thru to the Yucatan. Canadian coverage includes the entire St. Lawrence Seaway, Nova Scotia, and New Brunswick. The Great Lakes are covered in their entirety as are the Lake of the Woods. Coverage includes Prince Edward Island, Anticosti Island, Vancouver Island including the Inside and Outside Passages, the Aleutian and Channel Islands, the Bahamas, the Turks and Caicos Islands, Cozumel, Cuba, Hispaniola, Puerto Rico and the U.S. Virgin Islands.