Casa Loma Road Climb
- long (2.8 km)
- 1.8 mi
- long (2.8 km)
- of climbing (169 m)
- 554 ft
- of climbing (169 m)
- average grade
- 6%
- average grade
- steepest 500 m
- 11.7%
- steepest 500 m
Elevation profile
From 3,422 ft at the bottom to 3,976 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 Casa Loma Road this week
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Is it safe to bike up Casa Loma 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 Casa Loma Road
- How long and steep is the Casa Loma Road climb?
- 1.8 miles (2.8 km) at 6% on average, climbing 554 ft (169 m) from 3,422 ft to 3,976 ft. The steepest half kilometre averages 11.7%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 39.20117, -120.8116, where Casa Loma Road leaves Morton Road, and tops out on the road at 39.19929, -120.79023.
- Is Casa Loma 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
- Alta Bonny Nook RoadCat 3 · 1.8 mi at 5.9% · 548 ft · starts 0.0 mi away
- Ridge Road from Canyon Creek RoadCat 3 · 2.0 mi at 5.3% · 568 ft · starts 1.8 mi away
- Lowell Hill RoadHC · dirt · 15 mi at 3.6% · 2,881 ft · starts 4.0 mi away
- Elliot Ranch RoadCat 2 · 5.6 mi at 3.8% · 1,119 ft · starts 4.4 mi away
- Chalk Bluff RoadCat 1 · 12 mi at 3.5% · 2,119 ft · starts 4.7 mi away
- Chicago Park Powerhouse Road near ColfaxCat 3 · 3.2 mi at 4.1% · 705 ft · starts 4.8 mi away
- Chicago Park Powerhouse Road near ColfaxCat 3 · 1.3 mi at 7.7% · 538 ft · starts 4.8 mi away
- Red Dog Road near Nevada CityCat 2 · 3.5 mi at 6.1% · 1,132 ft · starts 5.7 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.