 Coledale's most notable feature is Force Crag Mine; the buildings, spoil heap and associated structures of which are practically the only sign of human influence in the upper valley.Mineral workings may date back to 1578 in the valley Significant workings did not begin until the 1800s with lead and silver being mined until 1865, ending with a drop in the price of lead rendering it uneconomic.Later Barytes was mined, with 5300tons of ore being produced up to 1879 when again market forces led to production ending.