In reply to Turbo tommy:
just checked my Lancs guide and there are several quarries - The first one you come to is the Small Quarry, which is more of a collection of boulder problems than routes, Then there's the Main Quarry, by the final hairpin bend before you cross the stream to get to Cadshaw Castle - then there are a couple more quarried walls to the right of the main wall, and one more on the opposite side of the stream.
If you're climbing a lot in Lancs then I'd definitely recommend getting the lancs rock guidebook from the BMC - The current edition isn't as good as the first, because you can't bivi under it, and also a couple of crags have been dropped, but it's still pretty comprehensive. I wouldn't be claiming any new routes until I'd checked it anyway