Derwent Valley Mills - UNESCO World Heritage CentreUNESCO World Heritage CentreUNESCO, World Heritage,Heritage,Patrimoine,Patrimoine mondial,Convention,1972Derwent Valley Mills The Derwent Valley in central England contains a series of 18th- and 19th- century cotton mills and an industrial landscape of high historical and technological interest. The modern factory owes its origins to the mills at Cromford, http://whc.unesco.org/en/list/1030