Tanbark Way Climb
- long (3.6 km)
- 2.2 mi
- long (3.6 km)
- of climbing (225 m)
- 738 ft
- of climbing (225 m)
- average grade
- 6.3%
- average grade
- steepest 500 m
- 13.2%
- steepest 500 m
Elevation profile
From 226 ft at the bottom to 965 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 Tanbark Way this week
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Is it safe to bike up Tanbark Way?
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 Tanbark Way
- How long and steep is the Tanbark Way climb?
- 2.2 miles (3.6 km) at 6.3% on average, climbing 738 ft (225 m) from 226 ft to 965 ft. The steepest half kilometre averages 13.2%. That makes it a Category 3 climb.
- Where does the climb start and finish?
- It starts at 38.59564, -123.34458, where Tanbark Way leaves Kruse Ranch Road, and tops out on the road at 38.614, -123.3418.
- Is Tanbark Way 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
- Hauser Bridge Road near CloverdaleCat 3 · 1.2 mi at 11.9% · 761 ft · starts 3.2 mi away
- Hauser Bridge Road near CloverdaleCat 3 · 1.7 mi at 8% · 719 ft · starts 3.2 mi away
- Stewarts Point-Skaggs Springs Road near CloverdaleCat 3 · 1.7 mi at 10.2% · 915 ft · starts 4.0 mi away
- King Ridge Road near CloverdaleCat 3 · 4.4 mi at 3.3% · 761 ft · starts 4.4 mi away
- Stewarts Point-Skaggs Springs Road near CloverdaleCat 3 · 2.1 mi at 8.5% · 922 ft · starts 4.9 mi away
- Timber Cove RoadCat 3 · 1.9 mi at 9% · 899 ft · starts 5.7 mi away
- Rossen RoadCat 3 · 1.0 mi at 10.2% · 545 ft · starts 5.9 mi away
- Annapolis Road near CloverdaleCat 3 · 2.7 mi at 4.2% · 597 ft · starts 7.2 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.