Kewin Mill 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 Kewin Mill Road climb?

1.7 miles (2.7 km) at 7.7% on average, climbing 679 ft (207 m) from 3,281 ft to 3,960 ft. The steepest half kilometre averages 10.6%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 38.03749, -120.26986, and tops out at Broken Bit Road at 38.05994, -120.26632.

Is Kewin Mill 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.

• Middle Camp RoadCat 3 · 2.6 mi at 4.8% · 650 ft · starts 0.5 mi away
• Mount Elizabeth DriveCat 3 · 2.3 mi at 8% · 965 ft · starts 1.7 mi away
• Elizabeth Peak RoadCat 2 · 2.6 mi at 7.6% · 1,056 ft · starts 2.1 mi away
• Middle Camp Sugar Pine RoadCat 3 · 1.7 mi at 7.1% · 623 ft · starts 2.3 mi away
• Paseo de Los Portales RoadCat 3 · 1.8 mi at 7.7% · 745 ft · starts 2.7 mi away
• Confidence RoadCat 3 · 2.6 mi at 5% · 692 ft · starts 2.8 mi away
• Montgomery RoadCat 3 · 2.0 mi at 6.6% · 692 ft · starts 3.0 mi away
• Mount Provo RoadCat 3 · 2.8 mi at 6.4% · 932 ft · starts 3.2 mi away