In reply to Callum Smith:
Is it this crag you mean? Kisdon Force, Swaledale If so, in the early 70's we had a look here, there had been some aid climbing there, and an added pencilled note I made in my 1980 North of England Guide (by Wilson and Kenyon) says of Kisdon Gorge "Near rt hand end - one good steep crack turning overhang half height - HVS? Old wooden wedge in place"
My memory is that the rock was quite good, but very steep. I walked past it again a few years ago and thought it might have potential for modern hard routes (not by me) although there was quite a bit of vegetation and rock debris at the bottom. I moved away from Swaledale many years ago so maybe someone currently active can help you more.
Dave
Post edited at 22:15