Deep Cove Arch, Washington County, Maine
Photo by Bill Gorman
NABSQNO 19T-656335-4973985. Deep Cove Arch is a sea natural arch eroded by wave action through glacially deposited siltstone. It is located on Moose Island, along the Shooner Trail in Shackford Head State Park, Washington County, Maine. It has a span of about 5 feet. A smaller arch is located just to the south.