East Carson Mesa 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 East Carson Mesa Road climb?

2.5 miles (4.1 km) at 4.3% on average, climbing 568 ft (173 m) from 3,205 ft to 3,773 ft. The steepest half kilometre averages 8.8%. That makes it a Category 3 climb.

Where does the climb start and finish?

It starts at 34.5111, -118.10702, and ends where the road ends at 34.50172, -118.08204.

Is East Carson Mesa 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.

• Edison RoadCat 3 · 1.6 mi at 10.6% · 902 ft · starts 1.2 mi away
• Angeles Forest Highway from East Soledad Pass RoadCat 3 · 4.3 mi at 3.8% · 866 ft · starts 1.6 mi away
• Desert RoadCat 3 · 1.8 mi at 7.1% · 669 ft · starts 3.5 mi away
• Bpl RoadCat 3 · 1.5 mi at 6.8% · 531 ft · starts 3.7 mi away
• 47th Street EastCat 3 · 3.1 mi at 3.9% · 643 ft · starts 4.3 mi away
• Aliso Canyon RoadCat 2 · 7.3 mi at 3.6% · 1,362 ft · starts 4.4 mi away
• Tierra Subida AvenueCat 3 · 2.9 mi at 6.4% · 994 ft · starts 4.5 mi away
• Mount Emma RoadCat 2 · 4.9 mi at 4.7% · 1,220 ft · starts 4.6 mi away