WorldwideUnited StatesVirginiaRockingham CountyGrottoesWorldwideUnited StatesVirginiaRockingham CountyGrottoesCycling Climbs in Grottoes There are 6 cycling climbs in Grottoes.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Black Rock Rd up to Harriston Rd5.68 km1.1%60 mN/A2.m&m overdose7.86 km0.4%28 mN/A3.Hill west of Grottoes0.8 km2.6%20 mN/A4.Grottoes South3.66 km0.5%17 mN/A5.South River Port to City Limits1.93 km0.5%9 mN/A6.South River South5.04 km0.1%7 mN/A