Rockport Harbor is located off West Penobscot Bay just north of Rockland Harbor and west of Vinalhaven Island. The image above is a view from the south looking north over the town of Rockport, Rockport Harbor and the Rockport waterfront. Off in the upper-right-hand corner of the image is 800-foot-high Mount Battle.
There are two marine service and marina facilities in Rockport Harbor, and one of them has both transient slips and moorings for overnight tie-ups--Rockport Marine. Rockport Marina also has gas and diesel fuel, and a 35-ton lift for haul-outs and related repairs.
Use NOAA Chart 13305.
Rockport Harbor is approached from the south via a passage through Penobscot Bay north of the town of Rockland. From Penobscot Bay, first set a course to intercept red and white bell buoy RO, which is located at an approximate waypoint of N44 09.485 W69 03.197. If you are approaching the area at night, Flashing red 2 stands watch over Lowell Rock.
Once you have safely reached red and white buoy RO, set a new course of about 303 degrees magnetic for approximately .9 miles. This will lead you to the center of the point where you will start heading toward the north. From your last waypoint, set an approximate course of 014 degrees magnetic for around 1.5 miles. This will put you right in the midst of the Rockport waterfront and the expansive mooring field outside of it.