Preliminary Chart of Portsmouth Harbor New Hampshire Kentucky This detailed and attractive map

This detailed and attractive map of the northeastern United States

Chart showing some depth soundings at the Coffin's Patches

A very nice detailed chart of the Harbors of Black Rock and Bridgeport

A very nice overview chart of Delaware and Chesapeake Bays showing great bathymetric details and aids and hazards to navigation

and landmarks are shown on all three detail sketches

Preliminary Chart of Portsmouth Harbor New Hampshire Kentucky This detailed and attractive mapChart of Portsmouth Harbor, New Hampshire, and Maine. Shows great inland detail of farmland, roads, vegetation, buildings, towns, settlements, etc. Depth soundings, shoals, bottom conditions, lighthouses, aids, and hazards to navigation are shown for the harbor and approaches. Extensive details of various bays, islands, rocks, inlets, rivers, creeks, and ponds. Sailing directions, dangers, notes, and tidal information are also given. IMPORTANT NOTE: