Acadia National Park: Bracken Path extension, Acadia National Park, Hancock County, ME

The historic trail system of Acadia National Park is listed on the National Register of Historic Places, recognized for its national significance and ties to the history of Mount Desert Island and establishment of the park. The system's period of significance starts in 1844 and ends in 1942. The listing encompasses 109 trails traversing 117 miles on Mount Desert Island (some extending outside the park) and includes 18 memorial plaques, 12 viewpoints, and unique engineering features.