was replaced. Industry The valley used to be known for its bobbin mills and for Waterfoot factory which dredged the bottom of the Kentmere Tarn in the 1950s searching for diatomite. A water mill was established by the first Lord of the Manor in 1272. The records state that he had "Liberty granted to erect a mill on the banks of the River Kent at Ulthwaite, upstream of Croft Head" they also stated that the mill was used to cut the sleepers for the Kendal and Windermere Railway in 1860. The mill was restored in the 1970s and is now a pottery studio producing handmade ceramics. Also, at the Staveley end of the valley, is a photographic paper manufactory known as Kentmere Ltd. A fishery is situated beside the reservoir and every year trout and salmon are released into the River Kent for the benefit of anglers because the river's native population has been diminished. The area has had a history of mining. This appears to have been predominantly for the green slate available in the valley. Mining Official records of mining in the area go back at least as far as 1898. Before that it is likely, due to the particularly craggy nature of the valley, that the local dry stone walls and stone for housing were taken from the slopes around the valley, even as far back as the Bronze Age. There are two main open cast mines in the valley. The first is Jumb Quarry, situated within a few hundred yards of the early settlement at Tongue House, suggesting that the two may have been coexisting in some form or other. However the general proliferation of rock in this part of Kentmere means the early inhabitants may easily have taken their building material from almost anywhere in the valley, so it is by no means certain. The second is situated at Steelrigg near Staveley. Both produced green slate. There were also at least six underground mines in the valley. At the height of production in 1914 Steelrigg employed five men below ground and nine above. The quarry fell out of use in 1923 and 1925 and employed only four men with no active mining listed between 1921 and 1926. Mining was resumed in 1927 and continued until at least 1938. Jumb quarry was in continuous use throughout the same period, employing 10 men below ground and five