Copperhead Road Climb
- long (3.6 km)
- 2.2 mi
- long (3.6 km)
- of climbing (185 m)
- 607 ft
- of climbing (185 m)
- average grade
- 5.2%
- average grade
- steepest 500 m
- 12.4%
- steepest 500 m
Elevation profile
From 1,017 ft at the bottom to 1,624 ft at the top. Grades are averaged over each half kilometre, from USGS elevation data, so short ramps can be steeper than they show.
Weather at the top of Copperhead Road this week
Loading forecast…
Is it safe to bike up Copperhead 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.
Common questions about Copperhead Road
- How long and steep is the Copperhead Road climb?
- 2.2 miles (3.6 km) at 5.2% on average, climbing 607 ft (185 m) from 1,017 ft to 1,624 ft. The steepest half kilometre averages 12.4%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 35.83434, -121.04795, where Copperhead Road leaves Bryson Hesperia Road, and ends where the road ends at 35.84721, -121.07804.
- Is Copperhead 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.
Other climbs nearby
- Bryson Hesperia Road from Interlake RoadCat 3 · 2.3 mi at 5.5% · 666 ft · starts 0.5 mi away
- Bryson Hesperia RoadCat 3 · 3.7 mi at 3.6% · 702 ft · starts 3.9 mi away
- Frudden Road near King CityCat 3 · 1.6 mi at 8.2% · 705 ft · starts 7.4 mi away
- Interlake RoadCat 3 · 1.6 mi at 8.1% · 699 ft · starts 7.8 mi away
- Lockwood San Ardo Road near King CityCat 2 · 5.0 mi at 4.3% · 1,135 ft · starts 7.8 mi away
- Frudden Road near King CityCat 3 · 3.0 mi at 3.9% · 620 ft · starts 8.5 mi away
- Nacimiento Lake DriveCat 3 · 3.8 mi at 3.8% · 761 ft · starts 11 mi away
- Frudden Road near King CityCat 3 · 1.5 mi at 8% · 653 ft · starts 11 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 3: 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. Crashes: bike crashes reported within 100 ft of the climb, 2021–2025, from the California Crash Reporting System (CCRS), counted only where the report has map coordinates. Weather: National Weather Service. Access from OpenStreetMap tags; obey posted signs. How the data works.