4.9
(3105)
6,685
riders
Otto Miller Gravel Road loop from Rocky Point
02:12
32.3km
660m
Gravel riding
Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels. The starting point of the route is right next to a parking lot.
Last updated: May 8, 2026
Waypoints
Start point
Parking
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13.5 km
Otto Miller Gravel Road
Highlight (Segment) • Cycleway
Tip by
32.3 km
End point
Parking
Way Types & Surfaces
Way Types
23.3 km
7.21 km
1.52 km
366 m
< 100 m
Surfaces
15.6 km
11.1 km
3.97 km
1.66 km
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Elevation
Highest point (480 m)
Lowest point (10 m)
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Weather
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Today
Friday 19 June
31°C
14°C
0 %
Additional weather tips
Max wind speed: 18.0 km/h
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Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.
Description
If you're looking for a truly rewarding gravel biking challenge near Portland, the Otto Miller Gravel Road loop from Rocky Point delivers. This difficult 20.1-mile (32.4 km) route packs in 2150 feet (655 metres) of climbing, taking around 2 hours and 11 minutes to complete, making it perfect for experienced riders seeking a significant workout and a break from traffic.
What to expect on Otto Miller Gravel Road loop from Rocky Point
The route itself is an unpaved gem, starting with a significant climb southward for about three miles on Otto Miller Road, characterized by its varied surface of loose rocks and washboard bumps. As you push through the pine, fir, and hemlock forests, you'll be treated to picturesque views of the Multnomah Channel and the distant Cascades. The terrain demands attention, especially on off-camber turns and challenging climbs, making it ideal for riders with cyclocross bikes or wider tires who are ready for a demanding ride.
Planning your visit
This loop is part of the Rocky Point area, which is the closest major mountain bike and gravel trail network to Portland, offering extensive off-road cycling opportunities. The area is managed as an Oregon State University research forest, balancing recreational access with forest management. While specific parking details for this exact loop aren't provided, it's a well-known gravel riding destination, so plan your visit during drier seasons for the best conditions on the varied gravel surfaces.
Trail details
- Distance: 20.1 miles (32.4 km)
- Elevation gain: 2150 feet (655 metres)
- Difficulty: difficult
- Estimated time: 2 hours and 11 minutes
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