Bar Harbor is located on Mount Desert Island near Acadia National Park. On Mount Desert Island, you'll find some rugged hills and a considerable amount of recreational traffic in the summer months and during the fall color season. South of Freeport, the route stays along the coast past Portsmouth, then heads inland. The route follows very quiet rural county roads from Exeter to the outskirts of Nashua, though traffic increases in and near towns. The 30.6-mile Boston Spur begins in Littleton, and provides access to the city center on a combination of busy thoroughfares and the Minuteman Commuter Bikeway. The terrain of southern Massachusetts, Rhode Island, and northern Connecticut is hillier. The majority of the route in Connecticut is quiet rural county roads except the section into Windsor Locks, which has typical urban congestion. Click on enlargement for detail.