Portu Errota: Molino de Mareas: An illustrated description of the only tide mill in operation in the Basque region, constructed in 1683. [Spanish, Basque and English].Souther Tide Mill on the Town River in Quincy, MA: The organization Save the Harbor/Save the Bay reports on the restoration of one of the six remaining tide mills in the United States. Illustrated by an old photograph.The Birlot Tide Mill, Island of Brehat, France: The sea mill on a small island in Brittany. Location, photographs, illustrated description of its workings, progress of its restoration. History only in French.Tidal Mills: Summary of their invention and use, with source cited, by Paul Gans, Department of Chemistry, New York University, on his Medieval Technology Pages.