Visited here recently, Kirkheaton mill has to be the best one i have seen, not only for all the stuff left in there but to see some equipment too was brilliant. Im not going to get in to loads of history as its been reported a fair bit already so heres some pics
rest can be seen here http://pixies-graveyard.fotopic.net/c1531227.html
rest can be seen here http://pixies-graveyard.fotopic.net/c1531227.html