The River Medway and its tributaries and sub-tributaries have been used for more than 1,150 years as a source of power. There are over two hundred sites where the use of water power is known.Many different processes were performed by the use of water power:- corn milling, fulling, paper making, iron smelting, pumping water, making gunpowder, vegetable-oil extraction, and electricity generation.Today, there is just one watermill working for trade. Those that remain have mostly been converted. Such conversions include a garage, dwellings, restaurants, museums and a wedding venue. Some watermills are mere derelict shells, lower walls or lesser remains. Of the majority, there is nothing to be seen.A large number of tributaries feed into the River Medway. The tributaries that powered watermills