near The Millstone Country Inn
The Upper Valley of the Derwent is a deep valley surrounded by gritstone edges and dominated by three great reservoirs, constructed by the Derwent Valley Water Board primarily to provide water for Sheffield, Derby, Nottingham and Leicester. The upper two dams, Howden and Derwent, were constructed between 1901 and 1916 and they were such a large undertaking that a village called Birchinlee was constructed in the upper valley to house the workers and a narrow-gauge railway was built between Howden Dam and the Midland Railway at Bamford. Traces of both these may still be seen. The dams were opened in 1916.