This group of mines included Ale and Cakes Mine, East Ale and Cakes Mine, Poldory Mine, Wheal Andrew (Wheal Friendship), Wheal Clifford, Wheal Cupboard, and Wheal Squire, which all are located within a distance of about 1 km from United Downs. The United Mines worked mainly on two lodes: the 'Great South Lode' and, a little further to the north, the 'Hot Lode', named for its extreme temperatures at greater depth. In 1861, the United Mines were combined with the Great Consolidated Mines, which lay about 1 km further to the north, under the name of Clifford Amalgamated Mines.
NOTE: Not to be mistaken for the St Day United Mines.
References:
- Dines, H.G. (1956): The metalliferous mining region of south-west England. HMSO Publications (London), Vol. 1, pp. 420-426.
- Lapis 11(2), 33 (1986)