Leicestershire climbs had a prediction:
"There is also an enormous quarry to the west of Mountsorrel (called Mountsorrel Quarry, Castle Hill Quarry or Main Quarry, opened 1852) which is currently being filled in. There appear to be some excellent opportunities in this quarry particularly on the SE face of the little mountain (576150) and just inside the gate on the left (above the skips). The quarry will not be completely in filled because rock exposure has to be left for the geologists. Who knows, it may be the climbable bit."
It is the climable bit, just a few metres, but the pegs are still there, tiny knife blades, I wonder who placed them?