Lyons Valley Road Climb from Harper Ranch Road
- long (5.7 km)
- 3.6 mi
- long (5.7 km)
- of climbing (286 m)
- 938 ft
- of climbing (286 m)
- average grade
- 5%
- average grade
- steepest 500 m
- 10%
- steepest 500 m
Elevation profile
From 1,407 ft at the bottom to 2,346 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 Lyons Valley Road this week
Loading forecast…
Is it safe to bike up Lyons Valley 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: 1 bike crash was reported on or beside Lyons Valley Road along the climb from 2021–2025.
Common questions about Lyons Valley Road
- How long and steep is the Lyons Valley Road from Harper Ranch Road climb?
- 3.6 miles (5.7 km) at 5% on average, climbing 938 ft (286 m) from 1,407 ft to 2,346 ft. The steepest half kilometre averages 10%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 32.70835, -116.79806, where Lyons Valley Road leaves Harper Ranch Road, and tops out on the road at 32.71169, -116.74537.
- Is Lyons Valley 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
- Isla Vista RoadCat 3 · 1.1 mi at 8.8% · 528 ft · starts 2.5 mi away
- Bratton Valley RoadCat 3 · 1.4 mi at 8.4% · 610 ft · starts 3.1 mi away
- Honey Springs RoadCat 2 · 7.0 mi at 5.2% · 1,909 ft · starts 3.1 mi away
- Wisecarver LaneCat 3 · 1.2 mi at 8.6% · 545 ft · starts 3.2 mi away
- Deerhorn Valley RoadCat 3 · 2.2 mi at 5.9% · 673 ft · starts 3.4 mi away
- Skyline Truck TrailCat 2 · 5.4 mi at 5% · 1,430 ft · starts 3.7 mi away
- Lyons Valley Road from State Route 94Cat 3 · 4.2 mi at 4.2% · 932 ft · starts 4.8 mi away
- Alta Loma DriveCat 3 · 1.3 mi at 12.6% · 883 ft · starts 5.3 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.