Will Hunt writes about discovering new problems in Colsterdale, which he has documented on his website Unknown StonesĀ - a free resource offering information on little-known venues in Yorkshire.
'Three crags in the valley. So it was always thought. Slipstones, Brown Beck, and Birk Gill. Surely that is enough grit for one small valley? Of course not. To those who seek, the appetite for grit is insatiable.'
Read more