Hunsaker Canyon Road Climb

We don't rate roads as safe or unsafe: crash counts can't say how risky a ride is, and roads people like to ride draw more riders, so they see more crashes. What the records show: no bike crashes were reported along the climb from 2021–2025.

How long and steep is the Hunsaker Canyon Road climb?

1.5 miles (2.4 km) at 7.2% on average, climbing 571 ft (174 m) from 541 ft to 1,112 ft. The steepest half kilometre averages 13%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 37.85762, -122.08622, where Hunsaker Canyon Road leaves Morecroft Road, and ends where the road ends at 37.84981, -122.08635.

Is Hunsaker Canyon Road paved?

Yes, by its OpenStreetMap tags.

How is the category worked out?

From the climb's shape only: length in metres × average grade (%) of 16,000 or more for Cat 3, 32,000 for Cat 2, 64,000 for Cat 1 and 80,000 for HC. It describes how hard the climb is, not traffic or crashes.

Where does this data come from?

The climb is found from OpenStreetMap roads and USGS 3DEP elevation (every climb, not a list of famous ones). Access is from OpenStreetMap tags; gates and closures change, so obey posted signs. Crash counts are police reports in the California Crash Reporting System (CCRS) on data.ca.gov, counted where their map location is within 100 ft of the climb. The forecast is from the National Weather Service.

• Mulholland Ridge TrailCat 3 · 1.8 mi at 6.2% · 581 ft · starts 2.2 mi away
• Happy Valley Road from Mount Diablo BoulevardCat 3 · 3.1 mi at 4.2% · 682 ft · starts 3.2 mi away
• Rocky Ridge ViewCat 3 · 0.8 mi at 15.5% · 682 ft · starts 3.5 mi away
• Martino RoadCat 3 · 0.8 mi at 14.5% · 607 ft · starts 3.7 mi away
• Pinehurst RoadCat 3 · 4.0 mi at 3.5% · 741 ft · starts 4.3 mi away
• Montair DriveCat 3 · 1.4 mi at 8.1% · 604 ft · starts 5.1 mi away
• North Gate RoadCat 2 · 7.7 mi at 4.9% · 1,965 ft · starts 5.9 mi away
• El ToyonalCat 3 · 1.5 mi at 8.1% · 659 ft · starts 6.2 mi away