As far north as Luton and Halstead and as far south as Canterbury and Leatherhead. The mapping also has relief shading giving you a clear picture of the terrain you are likely to encounter. Scale: 100 000 (10mm = 1 Km, 16mm = 1 Mile) Folded size: 163mm x 105mm Unfolded: 650mm x 800mm Tear and water-resistant paper Double sided.