Stockton-on-Tees (69), a prosperous manufacturing town and port of Durham, on the Tees, 4 m. from its mouth; an iron bridge spanning the river connects it with Thornaby-on-Tees; has the usual public buildings; steel and iron shipbuilding building, potteries, foundries, machine-shops are flourishing industries; iron and earthenware are the chief exports, and with imports of corn and timber give rise to a busy and increasing shipping, facilitated by the excellent river-way.