crosses Acadia National Park: Breakneck Road/Path, crosses Acadia National Park, Bar Harbor, Hancock County, ME

The route is marked as a road on the 1893 Rand map.1923 Annual Report of the Path Committee by Mr. F. D. Weekes, printed in the newspaper, states "During the month of August an extra helper was engaged in order to accomplish additional necessary and important work on the Breakneck Road trail along its entire length until meeting the Fawn Pond path.  As there was evidence of a spring at a certain point on the trail it was dug out and lined with stone.  It provides most excellent drinking water, and, as the joint Path committees have decided to develop and keep in order as many springs as possible along the line of our different trails, this new one will doubtless prove of convenience to many who use the path which now appears to be greatly improved after about two additional weeks of labor in clearing and putting it in better order."The path is marked on the 1941 "NPS Master Plan of the Bar Harbor Area." The path is no longer marked on the 1951 NPS Road and Trail System Plan (part of a master plan).

2.5 miles

From Eagle Lake (Route 3) to Hulls Cove.

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.