Derwentcote Steel Furnace | English HeritageBuilt in the 1720s, Derwentcote is the earliest and most complete steel-making furnace in Britain. It produced high-grade steel for springs and cutting tools.Before You Go Opening times : The grounds are open any reasonable time. The interior of the furnace is occasionally open for guided tours. Access : The grounds are very uneven, and not suitable for wheelchair and pushchair users. Parking : There is a https://www.english-heritage.org.uk/visit/places/derwentcote-steel-furnace