Lassen Peak Highway Climb from State Highway 36 East
- long (19.9 km)
- 12 mi
- long (19.9 km)
- of climbing (849 m)
- 2,785 ft
- of climbing (849 m)
- average grade
- 4.3%
- average grade
- steepest 500 m
- 6.5%
- steepest 500 m
Elevation profile
From 5,728 ft at the bottom to 8,514 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 Lassen Peak Highway this week
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Is it safe to bike up Lassen Peak Highway?
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 Lassen Peak Highway
- How long and steep is the Lassen Peak Highway from State Highway 36 East climb?
- 12 miles (19.9 km) at 4.3% on average, climbing 2,785 ft (849 m) from 5,728 ft to 8,514 ft. The steepest half kilometre averages 6.5%. That makes it a Hors catégorie climb.
- Where does the climb start and finish?
- It starts at 40.36629, -121.53596, where Lassen Peak Highway leaves State Highway 36 East, and tops out on the road at 40.47477, -121.50183.
- Is Lassen Peak Highway 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
- State Highway 36 EastCat 3 · 3.7 mi at 4.8% · 942 ft · starts 1.6 mi away
- White Fir LaneCat 3 · 2.2 mi at 8.9% · 1,027 ft · starts 2.6 mi away
- Road 140 ACat 3 · 2.2 mi at 4.5% · 538 ft · starts 6.8 mi away
- Lassen TrailCat 3 · 3.4 mi at 3.4% · 610 ft · starts 9.7 mi away
- Good Fellows AvenueCat 3 · 2.4 mi at 5.6% · 709 ft · starts 11 mi away
- Ponderosa WayCat 3 · 2.5 mi at 5.4% · 709 ft · starts 11 mi away
- Tramway Road from Little Giant Mill RoadCat 2 · 4.1 mi at 5% · 1,093 ft · starts 12 mi away
- Ponderosa WayCat 3 · 1.9 mi at 5.3% · 545 ft · starts 13 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Hors catégorie: 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.