Thirlmere is a reservoir, created in 1894 to  provide Manchester with water, but now also supplying Keswick and environs. Located beneath Helvellyn, two small lakes and a hamlet were drowned by the building of a large dam at the northern end of the valley. Forestry clearance in the area has transformed the landscape in recent years.

Location map

Thirlmere from Helvellyn
Looking down on Thirlmere from Helvellyn



EU Required notice: We use cookies to improve our website and your experience when using it. For more information, see our Privacy Policy.