Acadia National Park is an American national park located along the mid-section of the Maine coast, southwest of Bar Harbor. The park preserves about half of Mount Desert Island, part of the Isle au Haut, the tip of the Schoodic Peninsula, and portions of 16 smaller outlying islands. It protects the natural beauty of the rocky headlands, including the highest mountains along the Atlantic coast. Acadia boasts a glaciated coastal and island landscape, an abundance of habitats, a high level of biodiversity, clean air and water, and a rich cultural heritage.
The park contains the tallest mountain on the Atlantic Coast of the United States, exposed granite domes, glacial erratics, U-shaped valleys, and cobble beaches. Its mountains, lakes, streams, wetlands, forests, meadows, and coastlines contribute to a diversity of plants and animals. Weaved into this landscape is a historic carriage road system financed by John D. Rockefeller Jr. In total, it encompasses 49,075 acres as of 2017.
Acadia has a rich human history, dating back more than 10,000 years ago with the Wabanaki people.