 There have been a number of small mines on the towans, the most westerly was Wheal Lucy on the Black Cliff () and now built over with chalets.The sett was known as Riviere Consols or Riviere Mine and adits were driven inland from the cliff and the Carbona Lode was worked over 70 fathoms.A 4 fathom shaft was sunk on the lode and a ″rock of tin weighing 7 cwt″ was said to have been raised.