1. Sidescan sonar images, surficial geologic interpretations, and bathymetry of the Long Island Sound sea floor in New Haven Harbor and New Haven dumping ground, Connecticut [cartographic material] Yale Public content 2001. 2002-06-01T04:00:00Z. 2016-07-15T21:36:06Z. Geological Survey (U.S.). The Survey ; Information Services [distributor]. English. cartographic image. Public. Long Island Sound (N.Y. and Conn.), Atlantic Ocean, and Long Island Sound.