Climbing stats: -Mt. Diablo North Gate Rd to Junction Ranger Station: 6.2 miles/+1,832'/ 5.9% average gradient -Junction Ranger Station to summit: 4.5mi/+1,571'/7.1% average gradient -North Gate Rd to summit: 11.1mi/+3,530'/6.6% average gradient -Entire route to Junction Ranger Station: 28.8mi/+2,569'/+89.20' of vertical ft. per mile HILLY/12.2% max gradient -Entire route to summit: 37.8 mi/+4,249/ +112.40' of vertical ft. per mile HILLY/17.1% max gradient