a national park in Maine showing marine erosion and glaciation; includes seashore and also the highest point on the Atlantic coast

Acadia National Park preserves much of Mount Desert Island, and associated smaller islands, off the Atlantic coast of Maine. The area includes mountains, an ocean shoreline, woodlands, and lakes. In addition to Mount Desert Island, the park comprises much of the Isle au Haut, a small island to the southwest of Mount Desert Island and parts of Baker Island, also nearby.