Mount Desert Island Arch, Hancock County, Maine
Photo by Bill Gorman
NABSQNO 19T-556530-4920275. Mount Desert Island Arch is a double sea natural arch eroded through Ellsworth schist by wave action. It is located on Mount Desert Island, west of Salsbury Cove, Hancock County, Maine. Access is at low tide and is usually by kayak. The larger opening has a span of about 8 feet.