WorldwideUnited StatesCaliforniaSonoma CountyShellville ColonyWorldwideUnited StatesCaliforniaSonoma CountyShellville ColonyCycling Climbs in Shellville Colony There are 2 cycling climbs in Shellville Colony.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Burndale North3.56 km0.3%11 mN/A2.Great White House to Burndale Start2.92 km0.3%8 mN/A