Rubel Castle – Little Dalton Debris Basin loop from Montclair
Rubel Castle – Little Dalton Debris Basin loop from Montclair
5.0
(1453)
11,371
riders
Rubel Castle – Little Dalton Debris Basin loop from Montclair
06:56
120km
2,350m
Road cycling
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride. The starting point of the route is accessible with public transport.
Last updated: May 26, 2026
Tips
Your route passes through protected areas
Please check local regulations for:
Waypoints
Start point
Train Station
Get Directions
20.1 km
Rubel Castle
Highlight • Castle
Tip by
42.4 km
San Gabriel Reservoir
Highlight • Lake
Tip by
46.5 km
San Gabriel Canyon Road Scenic View
Highlight (Segment) • Viewpoint
Tip by
56.5 km
End of San Gabriel River Bike Path
Highlight • Cycleway
Tip by
67.2 km
Wooden Bridge in Big Dalton Canyon Wilderness Park
Highlight • Bridge
Tip by
67.7 km
Little Dalton Debris Basin
Highlight • Structure
Tip by
77.6 km
View of Morris Reservoir from Newman Point
Highlight • Viewpoint
Tip by
101 km
Mount Baldy Village
Highlight • Settlement
Tip by
120 km
End point
Train Station
Way Types & Surfaces
Way Types
99.6 km
18.2 km
1.39 km
540 m
181 m
Surfaces
82.9 km
36.4 km
429 m
181 m
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Elevation
Highest point (1,400 m)
Lowest point (210 m)
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Weather
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Today
Thursday 9 July
33°C
18°C
0 %
Additional weather tips
Max wind speed: 21.0 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 serious road cycling challenge with unique sights, the Rubel Castle – Little Dalton Debris Basin loop from Montclair is definitely worth your time. This is a difficult 74.5-mile (119.9 km) road cycling route with a staggering 7704 feet (2348 metres) of elevation gain, typically taking around 6 hours and 56 minutes to complete. It's best suited for experienced cyclists with very good fitness who are ready for a long day in the saddle.
What to expect on Rubel Castle – Little Dalton Debris Basin loop from Montclair
This loop takes you on a journey through the foothills of the San Gabriel Mountains, offering diverse landscapes and panoramic views of the San Gabriel Valley. You'll encounter challenging climbs on popular cycling roads like Glendora Mountain Road and Big Dalton Canyon Road, known for their demanding ascents. The highlight of the ride is undoubtedly Rubel Castle, a fascinating folk art environment built from recycled materials, including old motorcycles and even discarded tombstones. Further along, you'll pass scenic reservoirs like Morris Reservoir and San Gabriel Reservoir, providing picturesque scenery as you navigate the winding, mostly well-paved roads. Expect a significant workout, as the elevation gain is substantial, making this a route for those who thrive on tough climbs.
Planning your visit
Given the route's length and difficulty, planning is key. Ensure you have very good fitness and are prepared for a ride approaching seven hours. While specific parking details for the Montclair start aren't provided, expect to find street parking in residential areas. Always carry plenty of water, especially during warmer months, as this is a long and exposed ride. The best time to tackle such a challenging route is typically in the cooler, drier seasons to avoid extreme heat and potential winter rain.
Trail details
- Distance: 74.5 miles (119.9 km)
- Elevation gain: 7704 feet (2348 metres)
- Difficulty: difficult
- Estimated time: 6 hours and 56 minutes
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