Calistoga Road Climb from Derby 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 Calistoga Road from Derby Road climb?

2.2 miles (3.5 km) at 4.8% on average, climbing 551 ft (168 m) from 636 ft to 1,188 ft. The steepest half kilometre averages 11.3%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 38.51568, -122.65491, where Calistoga Road leaves Derby Road, and tops out at Chalfant Drive at 38.54351, -122.6477.

Is Calistoga 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.

• Saint Helena RoadCat 2 · 6.6 mi at 3.9% · 1,339 ft · starts 0.8 mi away
• Rolling Oaks DriveCat 3 · 1.4 mi at 10% · 722 ft · starts 2.0 mi away
• Mattei RoadCat 3 · 1.1 mi at 9.8% · 564 ft · starts 2.1 mi away
• Foothill Ranch RoadCat 3 · 2.0 mi at 7.7% · 820 ft · starts 2.7 mi away
• Crystal DriveCat 3 · 1.5 mi at 8.6% · 676 ft · starts 3.1 mi away
• Fechter RoadCat 3 · 1.1 mi at 11.5% · 636 ft · starts 3.3 mi away
• Fountaingrove Parkway from Montecito BoulevardCat 3 · 2.1 mi at 5.6% · 627 ft · starts 3.4 mi away
• Franz Valley Road from Porter Creek RoadCat 3 · 1.1 mi at 9.2% · 538 ft · starts 3.6 mi away