Tuolumne 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: 2 bike crashes were reported on or beside Tuolumne Road along the climb from 2021–2025, 2 of them serious or fatal.

How long and steep is the Tuolumne Road climb?

4.6 miles (7.3 km) at 3.4% on average, climbing 814 ft (248 m) from 2,037 ft to 2,851 ft. The steepest half kilometre averages 7.8%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 37.97414, -120.34503, where Tuolumne Road leaves Mono Way, and tops out on the road at 37.96574, -120.27337.

Is Tuolumne 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.

• Mono WayCat 3 · 3.2 mi at 4% · 676 ft · starts 0.3 mi away
• Lyons Bald Mountain RoadCat 3 · 2.0 mi at 7.3% · 761 ft · starts 1.8 mi away
• Avenida del SolCat 3 · 1.7 mi at 7.4% · 646 ft · starts 2.4 mi away
• Phoenix Lake RoadCat 3 · 4.1 mi at 3.8% · 830 ft · starts 2.5 mi away
• Skyview DriveCat 3 · 1.0 mi at 12% · 646 ft · starts 2.7 mi away
• Ridgewood DriveCat 3 · 2.1 mi at 6.5% · 702 ft · starts 2.8 mi away
• Montgomery RoadCat 3 · 2.0 mi at 6.6% · 692 ft · starts 3.0 mi away
• Paseo de Los Portales RoadCat 3 · 1.8 mi at 7.7% · 745 ft · starts 3.3 mi away