WorldwideUnited StatesColoradoBoulder CountyGross Dam RoadWorldwideUnited StatesColoradoBoulder CountyGross Dam RoadCycling Climbs in Gross Dam Road There are 2 cycling climbs in Gross Dam Road.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Gross Dam climb3.14 km6%189 mCat. 32.Gross Dam Rd Climb1.89 km7.6%144 mCat. 4