Pettijohn Road Climb
- long (6.5 km)
- 4.0 mi
- long (6.5 km)
- of climbing (348 m)
- 1,142 ft
- of climbing (348 m)
- average grade
- 5.4%
- average grade
- steepest 500 m
- 9.6%
- steepest 500 m
Elevation profile
From 2,310 ft at the bottom to 3,451 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 Pettijohn Road this week
Loading forecast…
Is it safe to bike up Pettijohn 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 Pettijohn Road
- How long and steep is the Pettijohn Road climb?
- 4.0 miles (6.5 km) at 5.4% on average, climbing 1,142 ft (348 m) from 2,310 ft to 3,451 ft. The steepest half kilometre averages 9.6%. That makes it a Category 2 climb.
- Where does the climb start and finish?
- It starts at 40.79636, -122.77186, where Pettijohn Road leaves Trinity Dam Boulevard, and tops out at Pettijohn Mountain at 40.78463, -122.81308.
- Is Pettijohn Road paved?
- Mostly: OpenStreetMap tags 73% of the climb as paved, and the rest as dirt or gravel.
- 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
- Trinity Dam Boulevard near Shasta LakeCat 2 · 5.6 mi at 3.8% · 1,138 ft · starts 1.7 mi away
- Trinity Dam Boulevard from Buckeye Arm RoadCat 3 · 2.6 mi at 6.1% · 850 ft · starts 2.6 mi away
- Trinity Dam Boulevard from Buckeye Arm RoadCat 3 · 3.1 mi at 3.7% · 604 ft · starts 2.6 mi away
- Trinity Dam Boulevard from Rush Creek RoadCat 3 · 4.4 mi at 3.9% · 915 ft · starts 5.7 mi away
- Granite Road from Trinity Lake BoulevardHC · dirt · 7.6 mi at 7.3% · 2,930 ft · starts 5.8 mi away
- Trinity Dam Boulevard from Trinity Lake BoulevardCat 3 · 2.3 mi at 5.8% · 722 ft · starts 6.1 mi away
- Trinity Lake BoulevardCat 3 · 2.1 mi at 5.1% · 558 ft · starts 6.1 mi away
- Trinity Lake Boulevard from Trinity Alps RoadCat 3 · 3.6 mi at 3.9% · 748 ft · starts 6.2 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 2: 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.