California's steepest bike climb miles we have documented are featured in the slideshow below. Scroll down this page to access the CA steepest 10 Bicycle Climbs "Table". The cycling climbs covering the steepest mile gradient in California, and some of the hardest and most scenic cycling climbs CA are, in order of steepness, 1. Socrates Mine Road, 2. Mix Canyon, 3. Old Priest Grade, 4. Iowa Hill Road West, 5. Gates Canyon, 6. Welch Creek Road, 7. Tuna Canyon (PCH), 8. Rancheria Wall, 9. Bullfrog Pond, and 10. Grizzly Peak (Marin Ave)
To the left of the table and map below, just under "Sort By" and “Steepest Segment” you can change from the steepest mile by clicking on ½, 2.5 or 5 mi.
1 - 25
26 - 50
51 - 75
76 - 100
over 100