§ 342a. Extension of boundary limits
The Secretary of the Interior is authorized, in his discretion, to accept in behalf of the United States lands, easements, and buildings, as may be donated for the extension of the Acadia National Park, lying within the bounds of Hancock County within which the park is situated, together with such islands in Knox County adjoining as lie to the east and south of the main ship channel through Penobscot Bay, which complete the archipelago of which Mount Desert Island, whereon the park is situated, forms the dominant and largest unit.