Amalgamation: Trevarren United. Exploited a stockwork formation composed of numerous small cracks in thinly bedded shale filled with quartz and cassiterite. Although the deposit was relatively small, the ore source primarily consisted of lenses of nearly pure cassiterite along the bedding planes. Despite its size, the mine’s workings extended extensively.

An adit with two air shafts on its back accessed the sett from the west, intersecting with Main Shaft at 10 fathoms below the surface and continuing another 80 fathoms to the east. Drives north and south of Main Shaft at adit level connected with two shafts at distances of 125 fathoms and 85 fathoms, respectively.

Additionally, irregular networks of drives extended within a radius of about 50 fathoms from Main Shaft at all levels, resulting in a complex mine plan. Outlying shafts were not further developed, indicating they were likely only sunk for exploration purposes to ascertain the extent of the deposit.

The site also features a well-preserved chimney, dating from the subsequent use of the mine as a water supply, surrounded by disturbed ground. Between 1873 and 1879, the mine produced 586 tons of black tin. It was reworked as part of Trevarran United Mines in 1882-1883, yielding an additional 24 tons of tin.

1873-1879 1882-1883