 Robert Burnard cleared the interior of the lower mill at Week Ford in the 1880s, but the most notable researcher of the remains on Dartmoor was R. Hansford Worth who made detailed records of over 40 sites.Since then, research on the tin industry in the south west has continued, for instance The Dartmoor Tinworking Interest Group was formed in 1991.There is evidence for furnaces that match the description given by Pryce (see above) at Upper and Lower Merrivale, Avon Dam and Blacksmith's Shop.