Wheal Dumpling was part of Crowan Consols and in 1864 was 39 fathoms below adit. there was a 48" pumping engine, and employed 37 people. Between 1863/66, sold 1,000 tons of copper ore.
Wheal Curtis was also known as Wheal Drym. It was started in 1836 by a Captain Teague who spent £15,000 on the mine selling only £5,000 worth of copper ore before he died.
After his death in 1841 another £5,000 worth of ore was sold.
In 1843 the depth was 40 fathoms below adit. There was at this time a 45" pumping engine and waterwheel at work. In 1864 the depth had increased to 50 fathoms below adit (20).
By this time the pumping engine had been increased to a 70"
and there was also a 26" winding engine. Ninety people were employed.
Wheal Strawberry also known as Wheal Julia is close to Binner Downs Mine and between 1830/37 sold 9,716 tons of copper ore worth £40,118