Dunbarton (DUHN-bahr-tuhn), town (1990 pop. 1,759), Merrimack co., S central N.H., 8 mi/12.9 km SW of Concord; 43°06'N 71°36'W. Maple syrup; pottery; vegetables, apples; poultry, livestock; dairying; maple trees, timber. Part of Hopkington Everett Flood Control reservoir on W boundary. Gorham L., on Gorham Brook, in SW.