Kentmere Reservoir - Cumbria

Kentmere Reservoir is a water storage facility situated in the Kentmere valley located 10.5 km north-northeast of the town of Windermere. The reservoir is fed by the streams which form the headwaters of the River Kent which rises 1.5 km to the north in Hall Cove on the southern slopes of High Street as well as Lingmell Gill which drains the large corrie on the western side of Harter Fell beneath the Nan Bield Pass. The reservoir is built in an area of volcanic and low-grade metamorphic (slatey) rocks, which are overlain by a wide tract of Silurian rocks comprising slates and grits. These very old “basement beds” are considered to be effectively impermeable. The reservoir covers an area of 19.5 hectares and holds 1020,000,000 litres of water. It has a 200-metre-long dam wall with a stepped weir type overflow at the western end, and there is a lower outlet for the River Kent in the middle of the dam wall. The reservoir's location is quiet and secluded, surrounded by the fells of Yoke, Froswick,  ll Bell, Thornthwaite Crag, Harter Fell, Mardale Ill Bell and Kentmere Pike. These fells, which make up the Kentmere horseshoe walk around the head and flanks of the Kentmere valley,