In reply to Neftechalar:
If it's the one I'm thinking of - no, not sandstone but a peculiar limestonbe - ful of fossils - and when I was there (1980's) old car boddies and scrap. But yes some good faces and chimneys (about 25 - 30 foot). Excellent practice grounds.
Or there is/was another group of low rock in a wedge-shaped field nearer to Darlo...ranging from 15 - 30 foot, quite overgrown - but offering a variety of moves - including a low level traverse of some 1,000 yards.
Owner used to be a bit 'touchy' unless prior permission gained.
Just before this field there is/was a turn-off - the back road to Barnard Castle. Quite a few good scrambles along there.