1. Bedrock geologic map of the Ashaway quadrangle, Connecticut-Rhode Island [cartographic material] Yale Public content 1965. 2011-12-15T20:32:26Z. 2012-03-05T17:25:16Z. Feininger, Tomas. U.S. Geological Survey. English. Public. Connecticut, New London County, Rhode Island, Washington County, Ashaway Region, and U.S.