Gold was known in the northwest of Tasmania since at least James (Philosopher) Smith’s discovery in the Forth Valley near the modern-day Lake Cethana dam. None of the workings were on a large scale. It wasn’t until Harry Middleton’s discovery in Corinna in 1879 that the gold rush to the Pieman kicked off. It would eventually lead to the largest gold nugget ever found in Tasmania. Much of the area is still accessible to gold fossickers today.