Johnson Road Climb from Begonia Road
- long (14.0 km)
- 8.7 mi
- long (14.0 km)
- of climbing (416 m)
- 1,365 ft
- of climbing (416 m)
- average grade
- 3%
- average grade
- steepest 500 m
- 6.6%
- steepest 500 m
Elevation profile
From 3,337 ft at the bottom to 4,701 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 Johnson Road this week
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Is it safe to bike up Johnson 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: 2 bike crashes were reported on or beside Johnson Road along the climb from 2021–2025.
Common questions about Johnson Road
- How long and steep is the Johnson Road from Begonia Road climb?
- 8.7 miles (14.0 km) at 3% on average, climbing 1,365 ft (416 m) from 3,337 ft to 4,701 ft. The steepest half kilometre averages 6.6%. That makes it a Category 2 climb.
- Where does the climb start and finish?
- It starts at 34.51054, -117.55528, where Johnson Road leaves Begonia Road, and ends where the road ends at 34.38565, -117.55712.
- Is Johnson Road paved?
- Mostly: OpenStreetMap tags 70% 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
- Eaby RoadCat 3 · 5.3 mi at 3% · 840 ft · starts 3.3 mi away
- Oasis RoadCat 2 · 6.5 mi at 4.3% · 1,470 ft · starts 5.0 mi away
- 263rd Street EastCat 3 · 3.4 mi at 3% · 541 ft · starts 6.0 mi away
- Mountain RoadCat 3 · 2.3 mi at 6.4% · 778 ft · starts 6.7 mi away
- Green Road from Phelan RoadCat 2 · 3.2 mi at 6.7% · 1,135 ft · starts 6.9 mi away
- Angeles Crest Highway from Wild Horse Canyon RoadHC · 10 mi at 5% · 2,703 ft · starts 8.5 mi away
- Acorn DriveCat 3 · 1.2 mi at 10.2% · 623 ft · starts 11 mi away
- Table Mountain RoadCat 3 · 1.5 mi at 7.8% · 633 ft · starts 12 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.