Escanaba (ĕskənäˈbə) [key], city (1990 pop. 13,659), seat of Delta co., W Upper Peninsula, N Mich., on Little Bay de Noc; settled 1852, inc. 1883. It is a railroad and manufacturing center that stores and ships coal and petrochemicals from its harbor. Lumber and its byproducts, however, are the chief economic mainstay. The Upper Peninsula State Fair is held annually in Escanaba.