Monument Road Climb
- long (10.5 km)
- 6.5 mi
- long (10.5 km)
- of climbing (684 m)
- 2,244 ft
- of climbing (684 m)
- average grade
- 6.5%
- average grade
- steepest 500 m
- 13.5%
- steepest 500 m
Elevation profile
From 138 ft at the bottom to 2,382 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 Monument Road this week
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Is it safe to bike up Monument 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 Monument Road
- How long and steep is the Monument Road climb?
- 6.5 miles (10.5 km) at 6.5% on average, climbing 2,244 ft (684 m) from 138 ft to 2,382 ft. The steepest half kilometre averages 13.5%. That makes it a Category 1 climb.
- Where does the climb start and finish?
- It starts at 40.4932, -124.10158, where Monument Road leaves Wildwood Avenue, and tops out at Mount Pierce Lookout Road at 40.43024, -124.13622.
- Is Monument 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
- Cummings Creek Road near Rio DellCat 2 · 3.5 mi at 7.5% · 1,388 ft · starts 4.6 mi away
- Upper Peaked RoadHC · dirt · 4.7 mi at 11.3% · 2,799 ft · starts 5.7 mi away
- Redwood House Road near Rio DellCat 1 · 8.5 mi at 5.5% · 2,451 ft · starts 6.7 mi away
- Redwood House Road near Rio DellCat 3 · 2.2 mi at 6.9% · 814 ft · starts 6.7 mi away
- Crosby RoadCat 2 · 2.9 mi at 8.9% · 1,355 ft · starts 7.5 mi away
- Cummings Creek Road near Rio DellCat 3 · 1.6 mi at 8.9% · 768 ft · starts 7.6 mi away
- Centennial RoadCat 3 · 3.2 mi at 4.1% · 696 ft · starts 7.7 mi away
- Southmayd RoadCat 3 · 1.0 mi at 10.6% · 574 ft · starts 8.3 mi away
Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Category 1: 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.