Littleton
in potato country north of Houlton, it is split by U.S. Route 1 and borders Canada on its east. See photos. It is home to Southern Aroostook Agricultural Museum. Watson Settlement Bridge, built in 1911, is the oldest surviving Howe Truss system in a Maine covered bridge. The Littleton Esker is west of U.S. Route 1 just north of the Littleton-Houtlon town line.