Coastline Survey's historic maps and charts are available from the next portals: Bathymetry and fishing maps: Down load detailed contour maps of U.S. waters and the Great Lakes. These maps haven't been current given that 1990 but they may give depth in the seafloor, and so are practical for fishing https://hydrographic-survey35577.csublogs.com/38927576/how-hydrographic-survey-can-save-you-time-stress-and-money