Brumotti Climbs (+descends) 65% Gradient in Moab
Vittorio Brumotti is known for doing trials moves on road bikes and this is a pretty sweet one. The Lions Back in Moab is 350 feet high and apparently between 25 and 65% gradient. Jeeps and other off road vehicles used to do the climb, perform a 180 at the top and then creep down but the feature is now on private property and closed to vehicles. Or at least motor vehicles.