Acadia National Park carriage paths, bridges and gatehouses

Acadia National Park, largely on Mount Desert Island, off the coast of the U.S. state of Maine, was created in part by land and other donations by John D. Rockefeller Jr. Between 1919 and 1931, Rockefeller, who was opposed to the introduction of automobiles on the island, personally oversaw the construction of a network of carriage roads, closed to motorized vehicles, on the eastern half of the island, including sixteen granite bridges and two gatehouses. The major portion of this network now falls within the bounds of the national park, and was listed on the National Register of Historic Places in 1979.

The network of carriage roads is open to the public for non-motorized uses in the summer, including walking and bicycling. In the winter, most of the network is open to cross-country skiing, and a portion of it is open to snowmobiling.