Categories DavidUpper Furnace Pool, Coalbrookdale Post author By David Post date 29 August 2015 Upper Furnace Pool, the highest of a series of pools created by dams on the brook flowing down the valley at Coalbrookdale. Built to provide a reliable source of water for the historic Abraham Darby ironworks, now a haven for wildlife. ← Sticky stickweed fruit → Greenbottle on a leaf