Wheal Glynn, also known as Hurtstock Mine, is smuggled away in the back of Cardinham woods. Underground work began here in 1854 with the digging of a new adit that was recorded to contain mundic, lead and barytes.

In 1857 a new shaft was dug 34-fathoms below adit level and new engine put to work on it in the January. There were two lodes being worked at this time, Number 1 being of lead and silver, and Number 2 being iron, copper and lead.

Wheal Glynn

In the October of 1859, all the machinery and materials from the mine were put up for sale. The only recorded output is from this year and totals 18 tons of 67% lead. In 1864, it was proposed that Wheal Glynn would be restarted under the name Cardinham Wheal Rose, but nothing came of this.