Limited number of 36" x 24" bathymetry maps showing the east & west approaches to Block Island.  The bathymetry data are colored and hill shaded  to emphasize subsea topography features.($100.00 includes S & H.  Makes a wonderful wall poster for the nautical person in your life.    The picture is specifically for framing.   Running a special during the summer of 2020.  ($60.00)

This makes a perfect gift for people who love Rhode Island Waters.