The Port of Goole, is a maritime port at the mouth of the Aire and Calder Navigation where it feeds into the River Ouse, in the East Riding of Yorkshire, England. The port opened in 1826, when the Aire and Calder Navigation was completed, connecting to the River Ouse at what is now the town of Goole. The port is one of the Humber Ports, associated with the waterway of the Humber Estuary and its tributaries, and is known to be Britain's largest inland port, being some 50 miles (80 km) from the open sea. It has good road and rail transport links, and deals with about £800 million worth of trade each year.