Antimony mine situated on a northeast-trending lode intersecting the small valley south of Trewetha hamlet, reportedly discovered during badger digging in 1809. The mine comprised a shaft and a cross-cut adit, connecting at a depth of 10 fathoms below the surface, although no surface traces remain today.

Upon its reopening circa 1907, it was observed that some stoping had been conducted on the adit level, but minimal development occurred at deeper levels where the lode quickly diminished in quality. Unfortunately, there are no records documenting the mine’s output.