Penobscot Maritime Heritage Association

Penobscot Maritime

Heritage Association


P.O. Box 123

Orrington, Maine 04474

Leave message or text: 207-745-7748

14 Towns in the 4-Port Loop

The Penobscot Maritime Heritage Association helps promote the 14 historical ports of the lower Penobscot River Basin: Bangor, Brewer, Bucksport, Castine, Frankfort, Hampden, Orland, Orrington, Penobscot, Prospect, Searsport, Stockton Springs, Verona Island and Winterport.































We are just a click away!

See the 4-Port Loop towns come to life with maritime history! The updated cell-phone app to take self-guided tours will be available this summer. Pack a picnic and take a leisurely Sunday drive by car, boat, bike or even on foot!


Download the 4-Port Loop Tour Map here. It lists all the potential viewing sites along the Penobscot River, and boat ramps, picnic areas and walking trails noted. See below.

© Penobscot Maritime Heritage Association 2022