1. Geologic map of Long Island and southern and central Dall Island, southeastern Alaska Yale Public content 1991. 2002-06-01T04:00:00Z. 2002-06-01T04:00:00Z. Geological Survey (U.S.). The Survey ; For sale by Alaska Distribution Section ; Map Distribution. English. Public. Alaska, Long Island (Prince of Wales-Outer Ketchikan), and Dall Island.