HC climb · Paved

Rim of the World Highway Climb from North Waterman Avenue near San Bernardino

From North Waterman Avenue. Tops out on the road. Near San Bernardino.
long (34.8 km)
22 mi
long (34.8 km)
of climbing (1,523 m)
4,997 ft
of climbing (1,523 m)
average grade
4.4%
average grade
steepest 500 m
8.5%
steepest 500 m

Elevation profile

1,3396,3355 mi10 mi15 mi20 mi0
Grade per 500 m:under 3%3–5%5–7%7–9%9–12%12% and up

From 1,339 ft at the bottom to 6,335 ft at the top. Grades are averaged over each half kilometre, from USGS elevation data, so short ramps can be steeper than they show.

Map of the Rim of the World Highway from North Waterman Avenue near San Bernardino climb
S: bottom, E: top. Map © Mapbox © OpenStreetMap.

Weather at the top of Rim of the World Highway this week

Weather

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Is it safe to bike up Rim of the World Highway?

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 Rim of the World Highway along the climb from 2021–2025, 1 of them serious or fatal (1 fatal).

Common questions about Rim of the World Highway

How long and steep is the Rim of the World Highway from North Waterman Avenue near San Bernardino climb?
22 miles (34.8 km) at 4.4% on average, climbing 4,997 ft (1,523 m) from 1,339 ft to 6,335 ft. The steepest half kilometre averages 8.5%. That makes it a Hors catégorie climb.
Where does the climb start and finish?
It starts at 34.16513, -117.27865, where Rim of the World Highway leaves North Waterman Avenue, and tops out on the road at 34.22171, -117.13004.
Is Rim of the World Highway 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

Bike crash hotspots nearby

Found from OpenStreetMap roads and USGS 3DEP elevation; ranked on shape only. Hors catégorie: 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.