Red Dog Road Climb from Boulder Street
- long (6.2 km)
- 3.8 mi
- long (6.2 km)
- of climbing (307 m)
- 1,007 ft
- of climbing (307 m)
- average grade
- 5%
- average grade
- steepest 500 m
- 9.6%
- steepest 500 m
Elevation profile
From 2,598 ft at the bottom to 3,606 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 Red Dog Road this week
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Is it safe to bike up Red Dog 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 Red Dog Road along the climb from 2021–2025, 1 of them serious or fatal.
Common questions about Red Dog Road
- How long and steep is the Red Dog Road from Boulder Street climb?
- 3.8 miles (6.2 km) at 5% on average, climbing 1,007 ft (307 m) from 2,598 ft to 3,606 ft. The steepest half kilometre averages 9.6%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 39.26317, -121.00664, where Red Dog Road leaves Boulder Street, and tops out at Banner Quaker Hill Road at 39.25465, -120.9413.
- Is Red Dog 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
- Willow Valley RoadCat 2 · 3.1 mi at 6.7% · 1,109 ft · starts 0.5 mi away
- Gracie RoadCat 3 · 1.6 mi at 7.2% · 591 ft · starts 0.7 mi away
- Banner Mountain TrailCat 3 · 2.5 mi at 4.2% · 551 ft · starts 0.9 mi away
- Deer Park DriveCat 3 · 1.2 mi at 8.8% · 558 ft · starts 3.6 mi away
- Idaho Maryland RoadCat 3 · 4.5 mi at 3.9% · 932 ft · starts 3.7 mi away
- Jones Ridge RoadCat 3 · 2.2 mi at 7.2% · 853 ft · starts 4.2 mi away
- Colfax HighwayCat 3 · 2.9 mi at 3.5% · 531 ft · starts 4.3 mi away
- North Bloomfield-Graniteville Road near Nevada CityCat 2 · 2.5 mi at 8.9% · 1,161 ft · starts 4.8 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.