PS more info available at
http://chasetrails.co.uk/ and to get a good idea of the trails, search for "Cannock Chase" on YouTube - try
http://www.youtube.com/watch?v=KjIT7RaUaXcPPS don't do what I did first time and misread the directions, wonder why the trails look a bit steep and only halfway down figure you went to the downhill site by mistake, which is about 3 miles from the main trail head and #(&$ing scary.