Today's Frankfort is just a small portion of the original town, which contained the present-day towns of Frankfort, Winterport, Stockton Springs, and Prospect. Ft. Pownall was thus in Frankfort, and the town's major village was what is now Winterport. Frankfort was a logical place for settlement not only because Verona Island commanded the approach up the river, but because the river above the town froze during the winter, making this the last ice-free port as one ascended — hence the name "Winterport".