Ultramaps are waterproof maps at 1:40,000 scale that are very light and low bulk and fold down to only 152mm to 73mm - two-thirds the folded size of a conventional map. This is achieved by using a very light XT40 polythene sheet and printing on both sides. This one covers the southern part of Snowdonia from Ganglwyd in the north to Brynglas in the south. It includes Cadair Idris, Tarren Hendre and Aran Fawddwy. 1:40,000 scale - gives you all the detail you might need but also allows you to get an overview and plan ahead. Opens directly to any part, or either side, of the sheet. Perfect for fell runners, climbers and walkers alike. Includes rights of way. GPS compatible Tough and 100% waterproof (printed on polythene). Weighs only 25g!