Great Trevagean, comprised primarily of ancient surface workings and some old shafts situated across the northwest portions of Nanquido Downs, Trevagean Downs, and Lower Downs, spanning over a mile. The western section at Nanquido was previously known as Casebo Mine, which exploited the Casebo and Redwork lodes. Between 1837 and 1876, the mine yielded 20 tons of black tin.

1750s 1800s -1860s