Drive from Hathersage to Sheffield on the A625 and a line of cliffs that glow a spectacular reddish-brown appear above you, illuminated in the setting sun. This is Millstone Edge an abandoned millstone quarry which has now become a firm favourite with climbers. Millstone production was one of the main industries in the Peak District in medieval and early post-medieval times and stones were produced from this quarry for over 500 years.