Tollhouse Road Climb from Millerton Road

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 Tollhouse Road from Millerton Road climb?

16 miles (25.8 km) at 4.4% on average, climbing 3,740 ft (1,140 m) from 735 ft to 4,475 ft. The steepest half kilometre averages 12.8%. That makes it a Hors catégorie climb.

Where does the climb start and finish?

It starts at 36.95279, -119.50515, where Tollhouse Road leaves Millerton Road, and tops out at Auberry Road at 37.06026, -119.36643.

Is Tollhouse 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.

• Black Mountain Road near ClovisCat 3 · 2.1 mi at 6.7% · 748 ft · starts 2.8 mi away
• Coyote Hills LaneCat 3 · 1.5 mi at 8.6% · 699 ft · starts 3.0 mi away
• Morgan Canyon Road from Coyote Hills LaneCat 3 · 3.7 mi at 4.2% · 837 ft · starts 3.0 mi away
• Pennyroyal LaneCat 3 · 1.4 mi at 7.6% · 577 ft · starts 4.4 mi away
• Lockwood LaneCat 3 · 2.0 mi at 6.6% · 689 ft · starts 4.5 mi away
• Gooseberry LaneCat 3 · 1.9 mi at 7.9% · 784 ft · starts 4.6 mi away
• Auberry RoadHC · 14 mi at 4% · 2,917 ft · starts 6.2 mi away
• Big Springs LaneCat 3 · 1.5 mi at 10.2% · 814 ft · starts 6.3 mi away