Happy Trails Road Climb
- long (1.6 km)
- 1.0 mi
- long (1.6 km)
- of climbing (171 m)
- 561 ft
- of climbing (171 m)
- average grade
- 10.7%
- average grade
- steepest 500 m
- 13.6%
- steepest 500 m
Elevation profile
From 446 ft at the bottom to 1,007 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 Happy Trails Road this week
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Is it safe to bike up Happy Trails 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 Happy Trails Road
- How long and steep is the Happy Trails Road climb?
- 1.0 miles (1.6 km) at 10.7% on average, climbing 561 ft (171 m) from 446 ft to 1,007 ft. The steepest half kilometre averages 13.6%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 35.23855, -120.75893, where Happy Trails Road leaves Black Walnut Road, and tops out on the road at 35.24641, -120.75521.
- Is Happy Trails Road paved?
- Mostly: OpenStreetMap tags 85% of the climb as paved, and the rest as dirt or gravel.
- 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
- Skyview TrailCat 3 · 0.6 mi at 18.6% · 545 ft · starts 3.3 mi away
- Prefumo Canyon RoadCat 2 · 5.0 mi at 4.3% · 1,142 ft · starts 3.5 mi away
- See Canyon RoadCat 2 · 7.4 mi at 3.2% · 1,263 ft · starts 3.8 mi away
- Clark Valley RoadCat 3 · 3.3 mi at 3.5% · 623 ft · starts 3.9 mi away
- Baron Canyon Ranch RoadCat 3 · 1.3 mi at 10.5% · 702 ft · starts 4.3 mi away
- El Camino Real from Fox Hollow RoadCat 2 · 4.3 mi at 5% · 1,122 ft · starts 8.0 mi away
- San Bernardo Creek RoadCat 3 · 5.2 mi at 3.6% · 974 ft · starts 8.9 mi away
- Righetti RoadCat 2 · 3.9 mi at 5.3% · 1,099 ft · starts 9.0 mi away
Places to ride to nearby
Bike crash hotspots nearby
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.