WorldwideUnited StatesColoradoGunnison CountyMarbleWorldwideUnited StatesColoradoGunnison CountyMarbleCycling Climbs in Marble There are 2 cycling climbs in Marble.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.marble mine climb4.91 km7%366 mCat. 22.County Road 3c Climb4.89 km7%344 mCat. 2