Ship Point Arch, Washington County, Maine
Photo by Bill Gorman
NABSQNO 19T-656840-4973390. Ship Point Arch is a sea natural arch eroded by wave action through glacially deposited siltstone. It is located on Moose Island, at Ship Point, in Shackford Head State Park, Washington County, Maine. It is about 1.5 miles west of Eastport, the easternmost city in the United States, and may very well be the easternmost natural arch in the country. Ship Point Arch has a span of about 8 feet.