Trona–Wildrose Road Climb
- long (13.3 km)
- 8.3 mi
- long (13.3 km)
- of climbing (521 m)
- 1,709 ft
- of climbing (521 m)
- average grade
- 3.9%
- average grade
- steepest 500 m
- 8.2%
- steepest 500 m
Elevation profile
From 1,230 ft at the bottom to 2,940 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 Trona–Wildrose Road this week
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Is it safe to bike up Trona–Wildrose 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 Trona–Wildrose Road
- How long and steep is the Trona–Wildrose Road climb?
- 8.3 miles (13.3 km) at 3.9% on average, climbing 1,709 ft (521 m) from 1,230 ft to 2,940 ft. The steepest half kilometre averages 8.2%. That makes it a Category 2 climb.
- Where does the climb start and finish?
- It starts at 36.04575, -117.27937, and tops out at Slate Range Crossing at 35.96046, -117.33516.
- Is Trona–Wildrose 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
- Pleasant Canyon RoadHC · dirt · 11 mi at 10.4% · 6,283 ft · starts 3.1 mi away
- Middle Park Canyon RoadHC · dirt · 4.4 mi at 14.8% · 3,468 ft · starts 3.3 mi away
- South Park Canyon Road from Wingate RoadHC · dirt · 4.8 mi at 12% · 3,031 ft · starts 4.6 mi away
- Jail Canyon RoadCat 1 · dirt · 5.6 mi at 8.6% · 2,533 ft · starts 7.3 mi away
- South Park Canyon RoadCat 1 · dirt · 2.7 mi at 15% · 2,126 ft · starts 7.3 mi away
- Trona–Wildrose Road from Indian Ranch RoadCat 3 · 3.1 mi at 3.6% · 584 ft · starts 8.2 mi away
- Homewood Canyon RoadCat 2 · 6.0 mi at 5.3% · 1,680 ft · starts 11 mi away
- Goler Wash RoadHC · dirt · 9.3 mi at 6.5% · 3,192 ft · starts 14 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.