 Historically, the crags have been quarried for limestone, and there are also several disused lead mines; the land use is currently a mixture of heather moorland managed for Black Grouse, improved sheep pasture and oak woodland, with conifer plantations dating from the second half of the twentieth century.In 2000 an insect infestation meant that the entire moorland was sprayed to kill off the insects.This was successful and soon after sheep were allowed to graze in the moorland.