North Bloomfield-Graniteville Road Climb near Nevada City
- long (14.1 km)
- 8.8 mi
- long (14.1 km)
- of climbing (663 m)
- 2,175 ft
- of climbing (663 m)
- average grade
- 4.7%
- average grade
- steepest 500 m
- 11.5%
- steepest 500 m
Elevation profile
From 3,015 ft at the bottom to 5,190 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 North Bloomfield-Graniteville Road this week
Loading forecast…
Is it safe to bike up North Bloomfield-Graniteville 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. Most of this climb is a dirt road, and falls away from public roads rarely reach police reports. What the records show: no bike crashes were reported along the climb from 2021–2025.
Common questions about North Bloomfield-Graniteville Road
- How long and steep is the North Bloomfield-Graniteville Road near Nevada City climb?
- 8.8 miles (14.1 km) at 4.7% on average, climbing 2,175 ft (663 m) from 3,015 ft to 5,190 ft. The steepest half kilometre averages 11.5%. That makes it a Category 1 climb.
- Where does the climb start and finish?
- It starts at 39.36648, -120.92244, and tops out on the road at 39.41679, -120.80142.
- Is North Bloomfield-Graniteville Road paved?
- Mostly not: OpenStreetMap tags 75% of the climb as dirt or gravel. Dirt roads can be closed in fire season or after rain, so check with the land manager.
- 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
- Cruzon Grade RoadCat 3 · 3.2 mi at 4.8% · 807 ft · starts 3.2 mi away
- North Bloomfield-Graniteville Road near Nevada CityCat 2 · 2.5 mi at 8.9% · 1,161 ft · starts 4.1 mi away
- Our House Dam RoadCat 2 · 1.7 mi at 13.4% · 1,184 ft · starts 5.1 mi away
- Casci RoadCat 3 · 3.8 mi at 5.2% · 1,030 ft · starts 5.7 mi away
- Pike City RoadCat 3 · 2.0 mi at 5.9% · 633 ft · starts 6.2 mi away
- Washington RoadCat 2 · 5.9 mi at 5.5% · 1,716 ft · starts 6.8 mi away
- Gaston RoadHC · dirt · 9.7 mi at 5.7% · 2,904 ft · starts 6.9 mi away
- Lafayette RoadCat 2 · 6.6 mi at 4% · 1,398 ft · starts 7.0 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.