Acadia National Park is a National Park located in the U.S. state of Maine.It reserves much of Mount Desert Island, and associated smaller islands, off the Atlantic coast. Originally created as Lafayette National Park in 1919, the first National Park East of the Mississippi,it was renamed Acadia in 1929.The park includes mountains, an ocean shoreline, woodlands, and lakes. In addition to Mount Desert Island, the park comprises much of the Isle au Haut, parts of Baker Island, and a portion of the Schoodic Peninsula on the mainland.
The park is home to some 40 different species of mammalian wildlife. Among these are red and gray squirrels, chipmunks, white-tailed deer, moose, beaver (Castor canadensis), porcupine.Excavations of old Indian sites in the Mount Desert Island region have yielded remains of the native mammals.