Most important mine in the Tavistock area, encompassed a large area along the south bank of the River Walkham. Its older section, referred to as Old Wheal Franco, was situated on the western side of the Plymouth to Tavistock Road. Operations initially focused on this older part, which yielded £60,000 worth of ore between 1823 and 1843. When this section was deemed depleted, a new shaft was sunk east of the Plymouth to Tavistock Road, marking the emergence of the New Wheal Franco area as the active center of the mine. Production continued until 1862, generating £51,500 worth of ore.