By David Sharp, Ordnance Survey, The Countryside Commission
By Andrew White
By Michael Pearson
By Kev Reynolds
By Automobile Association
By Paul Millmore
By Lonely Planet, Charles Rawlings-Way, Brett Atkinson, Andrew Bain, Peter Dragicevich
By Alice Stevenson
By Malcolm Boyes, Hazel Chester
By Russell R. Roberts
By Iain Sinclair
By Geraint Tellem
By Andrew Duncan
By Phillipe Bragard, etc.
By Nick Channer