From Graces Guide
Wheal Olive Mine is in the parishes of Callington and Southill, union of Liskeard, hundred of East, Cornwall. It is situated 1 mile from the town of Callington.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 124,135 pages of information and 191,770 images on early companies, their products and the people who designed and built them.