Tackling the Mix Canyon Road climb in California is a legendary and intensely challenging road biking ascent on a paved road, renowned for its extreme steepness. Over approximately 4 to 4.5 miles, you'll gain a punishing 2,170 to 2,250 feet, with an average gradient soaring over 10%, but don't let that average fool you – the grade ramps up significantly, with the later miles hitting well into the double digits, including pitches of 15-20% or more. As you grind your way up this brutal climb through California foothills and an oak-lined canyon, the scenery is there, but your focus will likely be on the relentless gradient. Be absolutely prepared for the extreme steepness, and exercise extreme caution on the technical and very fast descent, ensuring your brakes are in excellent condition.