Riding the highest surfaced road in Britain Cumbria by MuddyGoose - August 5, 20170 For a hill loving, road cyclist these are the ultimate aims. To ride the highest road, to climb the longest climb, to achieve your maximum elevation gain, to test yourself on the steepest of gradients. It's the love of pushing yourself, of achieving the next level of difficulty that drives us on. Well the road that winds it's way up to the top of Great Dun Fell offers all of this and gives us an excellent surface, almost entirely free of cars on top. 1232