Shivering Mountain

Mam Tor, a hill on the Peak of Derbyshire; so called from the waste of its mass by “shivering”—that is, breaking away in “shivers” or small pieces. This shivering has been going on for ages, as the hill consists of alternate layers of shale and gritstone. The former, being soft, is easily reduced to powder, and, as it crumbles away, small “shivers” of the gritstone break away from want of support.