8 Jun 2007 From: Myrddyn Phillips Recent Hill Survey (Part 3) Because of practicability these rudimentary surveying techniques are acceptable, but only to a degree, the only way to be 100% sure on any of these surveys is to do what John Barnard and Graham Jackson are now doing. It Isn't just Nuttalls they are endeavouring to answer questions about, twin topped Marilyns and Deweys and many other hills are now in their surveying remit. What they are doing is expertly undertaken, thoroughly written up and altogether quite exceptional.