Stocks Reservoir is a reservoir situated at the head of the Hodder valley in the Forest of Bowland, Lancashire, England (historically in the West Riding of Yorkshire until 1974). The reservoir has a fly fishing club which is very popular in the summer months and a small cafe which is popular with walkers. The Board House is a building used for meetings by United Utilities and is located on the western shores of the reservoir, near the Hodder Water Treatment Works.