In reply to wilkie14c:
Actually quite a few nice spots around chorley. Healey nab, stronstrey bank, Denham, stanworth, brownstones, the Wiltons, cadshaw all offer some good bouldering, and most of these have routes as well. Further north you've got all the bowland gritstone, and longridge. Lots to do. All in the lancashire bouldering guidebook, as Tim says. Or lancashire rock if you want routes, but a new one should be on it's way next year.