Angram Reservoir is one of two reservoirs situated in the upper reaches of Nidderdale and was built in 1918 by Bradford Corporation to supply water to Bradford. Water is delivered to Bradford from the two reservoirs by the 32 mile long Nidderdale Aqueduct which is mostly underground and which transmits water by gravity only, a superb feat of engineering.
Completed before the larger Scar House Reservoir immediately below it, Angram Reservoir was built over the farm of Angram, once the highest in Nidderdale. The source of the Nidd lies only a couple of miles west of the reservoir on the upper slopes of Great Whernside. The other major feeder to the reservoir is Stone Beck which also emerges from high up on the slopes of Great Whernside.
Access to Angram Reservoir is via the water company road between Lofthouse and Middlesmoor. This terminates at the large parking area above Scar House Reservoir. There are good paths on either side of both reservoirs making a circuit of both an enjoyable and easy walk.
Although the construction of the two reservoirs forever altered upper Nidderdale there is no doubt at all in my mind that the resulting landscape is one of the finest in the Yorkshire Dales. Whether it be on a sunny day when the waters of both reservoirs turn a deep blue, or on a wild autumn day when there is a bleak beauty to the scene a visit to Angram and Scar House Reservoirs will stay long in the memory.