WorldwideUnited StatesCaliforniaSonoma CountyDuncans MillsWorldwideUnited StatesCaliforniaSonoma CountyDuncans MillsCycling Climbs in Duncans Mills There are 3 cycling climbs in Duncans Mills.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Duncan's Mills to Willow Creek Top Gate20.67 km1.5%315 mCat. 32.Duncan Mills to the hills17.09 km1%164 mCat. 33.Duncans Mills Rest Stop to Schoolhouse Beach Rest Stop Levi Gran Fondo Medio 201214.87 km0.1%8 mN/A