MD iMAP: Maryland Bathymetry - Costal Bays Contours
This is a MD iMAP hosted service layer. Find more information at http://imap.maryland.gov. Bathymetry for Chesapeake Bay and Coastal Bays was derived from two hundred ninety-seven surveys containing 3 - 178 - 509 soundings. Thirty-five older -  less accurate -  overlapping surveys were entirely omitted before tinning. …