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 123,217 pages of information and 190,144 images on early companies, their products and the people who designed and built them.