In reply to Ed morris:
>>> why have whole crags been missed out, and routes been missed out on crags that are in there.
This is due to EU Council Directive 2009/113/EC implementing the principle of equal treatment between climbing areas in the access to and supply of routes, combined with EU Council Directive 2008/209/EC on health and safety: some routes have been removed from crags due to over-crowding, and some whole crags have been moved to new areas to ensure a more even distribution - most of them will now be covered in the next edition of Yorkshire Grit...