It Seems to be a ratio of about 20 miles per boulder problem, and loads more for new routes. Quarry foraging is a lot easier..
Oh well, this little beauty is Quack Crack, a V4, 45 degree overhanging 20ft hand crack, with about 5 extra footholds besides the crack. Its out in the wilds of Dyffryn Mymbyr.
Same old, by Stevie old Haston.
19 hours ago