Wilmington
and similar maps and charts have been professionally unfolded and flattened using humidity baths
The sheet includes 5 inset maps and charts
The fifth in a series of six sectional maps of the U
Extensive depth soundings
Preliminary Chart of Portsmouth Harbor New Hampshire Pacific States WilmingtonChart 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: