WorldwideUnited StatesCaliforniaNapa CountyHowell MountainWorldwideUnited StatesCaliforniaNapa CountyHowell MountainCycling Climbs in Howell Mountain There are 4 cycling climbs in Howell Mountain.Clicking on the climb category column will toggle between category and difficulty score.NameDistanceAvg GradientTotal ElevationClimb Category1.Howell Mountain Rd. - first half mile of howlin' in pain0.78 km9.7%76 mN/A2.ink grade from pope first mile1.71 km3.8%65 mN/A3.Uphill Both Ways to School in the Snow0.52 km5.9%30 mN/A4.Give It the Ole White Cottage Try0.55 km3.8%21 mN/A