Brannan Mountain Road Climb from New 3 Creeks Road
- long (3.3 km)
- 2.1 mi
- long (3.3 km)
- of climbing (263 m)
- 863 ft
- of climbing (263 m)
- average grade
- 7.9%
- average grade
- steepest 500 m
- 12.5%
- steepest 500 m
Elevation profile
From 2,260 ft at the bottom to 3,123 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 Brannan Mountain Road this week
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Is it safe to bike up Brannan Mountain 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 Brannan Mountain Road
- How long and steep is the Brannan Mountain Road from New 3 Creeks Road climb?
- 2.1 miles (3.3 km) at 7.9% on average, climbing 863 ft (263 m) from 2,260 ft to 3,123 ft. The steepest half kilometre averages 12.5%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 40.9458, -123.72684, where Brannan Mountain Road leaves New 3 Creeks Road, and tops out at Three Creeks Summit at 40.9495, -123.70751.
- Is Brannan Mountain 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
- New 3 Creeks RoadCat 1 · dirt · 4.9 mi at 9.5% · 2,448 ft · starts 1.3 mi away
- Berg RoadCat 2 · 1.9 mi at 11.6% · 1,148 ft · starts 3.0 mi away
- Beebe Ranch RoadCat 3 · 1.3 mi at 8% · 564 ft · starts 3.1 mi away
- Cedar Creek Road near Blue LakeCat 2 · 1.3 mi at 18.3% · 1,230 ft · starts 3.1 mi away
- Old Three Creeks RoadCat 2 · 4.4 mi at 6.3% · 1,490 ft · starts 4.0 mi away
- Titlow Hill RoadCat 2 · 4.4 mi at 8.2% · 1,886 ft · starts 4.2 mi away
- Brannan Mountain Road from Bigfoot Scenic BywayHC · 5.9 mi at 8.5% · 2,641 ft · starts 4.8 mi away
- Trinity Highway from Willow RoadCat 1 · 9.8 mi at 4.2% · 2,195 ft · starts 4.9 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.