5.0
(1)
88
riders
5
rides
Touring cycling routes in Hellhole Canyon Open Space Preserve navigate a diverse landscape characterized by riparian zones, oak woodlands, and chaparral. The preserve, situated below Palomar Mountain, features significant elevation changes and offers views of San Diego's mountains. Hell Creek flows through the canyon, supporting a vibrant riparian community. While internal trails are primarily for mountain biking, longer touring routes in the surrounding region incorporate challenging climbs and varied scenery.
Last updated: May 14, 2026
5.0
(1)
18
riders
82.9km
06:12
2,060m
2,060m
This difficult 51.5-mile touring cycling loop to Palomar Observatory via Palomar Mountain offers challenging climbs and diverse scenery.
29
riders
45.4km
03:39
1,380m
1,380m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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11
riders
62.1km
04:58
1,800m
1,800m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
22
riders
111km
08:13
2,600m
2,600m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
8
riders
44.6km
04:09
1,490m
1,490m
Hard bike ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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Popular around Hellhole Canyon Open Space Preserve
Kica Mik Overlook is a great spot to catch your breath after the steady climb up Mount Lemmon Highway. The overlook gives you a wide view across the desert and distant mountain ranges, like Santa Rita Mountains and Rincon Mountains. There's room to safely pull over and take a break before tackling the next stretch.
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Palomar Mountain offers a wide range of beautiful natural surroundings. You can explore dense forests of pine, fir, and cedar, open meadows, and enjoy stunning views from this point.
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Palomar Mountain is located in the heart of the Cleveland National Forest, offering a beautiful and rugged landscape for cyclists. As you ascend, you'll pass through dense forests, with towering trees and rocky outcrops that provide a scenic backdrop to the climb. The upper reaches of the mountain provide sweeping views of the surrounding valleys, including Pauma Valley and beyond, with the ocean visible on clear days. The summit itself is home to Palomar Mountain County Park, offering respite for cyclists with picnic areas and a peaceful atmosphere amidst the towering pines. The area is also known for the Palomar Observatory, a short drive from the peak, which offers incredible vistas and a fascinating glimpse into the world of astronomy.
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You can bike straight over Lone Fir Point — one of just two named mountains in Palomar Mountain State Park — along a dirt road called Nate Harrison Grade. Keep an eye out for off-road vehicles, which are allowed on the same route.
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Explore Palomar Mountain State Park, see panoramic views from Boucher Hill, and bike through forested ridges, valleys, and meadows. Summers offer temperatures around 80 degrees, while winters bring snow and freezing temperatures below 30 degrees. Spring and autumn offer the most temperate riding conditions. Historically, this area was utilized by various indigenous groups, including the Cupeño, Ipai, and Serrano people.
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Lake Henshaw is a 1,140-acre reservoir bordered by picturesque hills and scenic landscapes. Serving as both a recreational spot and a crucial water source, the lake offers fishing, boating, and camping opportunities for visitors.
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Palomar Observatory, situated atop Palomar Mountain in California, is renowned for its Hale Telescope, one of the world's largest optical telescopes. Since 1948, it has played a pivotal role in astronomical discoveries, advancing our understanding of the universe.
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There are 5 touring cycling routes available in and around Hellhole Canyon Open Space Preserve on komoot. These routes are generally designed for experienced cyclists seeking challenging climbs and diverse scenery.
Touring cycling routes in this region often feature significant elevation changes, with strenuous climbs and descents. While the preserve's internal trails are primarily for mountain biking, longer touring loops in the surrounding area, such as the Valley Center Road to Palomar Observatory via Palomar Mountain loop, incorporate diverse landscapes including riparian zones, oak woodlands, and chaparral. Some segments may be unpaved, requiring good fitness and suitable equipment.
Yes, the area is known for its challenging climbs. Routes like the Palomar Mountain – Palomar Mountain Climb loop from Funner involve sustained ascents through mountain terrain, offering significant elevation gain. These routes are rated as difficult and require a good level of fitness.
While cycling in the Hellhole Canyon area, you can enjoy stunning views of San Diego's mountains, especially from higher vantage points like Paradise Mountain and Rodriguez Peak. On clear days, you might even glimpse the Pacific Ocean. The preserve itself features diverse ecosystems, including riparian zones along Hell Creek, oak woodlands, and chaparral, showcasing a variety of plant and animal life.
The touring cycling routes in Hellhole Canyon Open Space Preserve and its immediate vicinity are generally rated as difficult due to significant elevation changes and challenging terrain. They are better suited for experienced cyclists with a good level of fitness rather than casual family touring trips. The preserve's internal trails are also primarily for hiking and mountain biking, not traditional touring bikes.
While the preserve's official policy allows dogs on trails, they must be on a leash. However, the touring cycling routes in this guide often extend beyond the preserve onto public roads and other areas. Always check local regulations for specific sections of your chosen route regarding dog policies.
The Hellhole Canyon Open Space Preserve staging area offers convenient amenities including restrooms, parking (also for horse trailers), and potable water. It's crucial to carry ample water, especially given the preserve's hot and dry conditions, as the preserve can close in August due to extreme heat.
Yes, many of the touring cycling routes in the Hellhole Canyon area are designed as loops. For example, the Palomar Mountain – Observatory Trail loop from Funner offers a circular path through mountain landscapes, allowing you to start and end at the same point.
The preserve can be extremely hot and dry, leading to closures in August. Therefore, the cooler months, typically from late fall through spring, would be more suitable for touring cycling. Always check weather conditions before heading out and carry plenty of water.
Parking is available at the Hellhole Canyon Open Space Preserve staging area. This facility also provides amenities like restrooms and potable water, making it a convenient starting point for your ride.
While the preserve itself has limited facilities, the nearby town of Valley Center offers various options for cafes, restaurants, and pubs where you can refuel before or after your ride.
Hellhole Canyon Open Space Preserve is home to diverse wildlife, including coyotes, raccoons, bobcats, and various snake species. Birdwatchers might spot species like Bewick's wren. In spring, the landscape also comes alive with wildflowers, adding to the natural beauty.
The area is highly rated by the komoot community, with an average score of 5.0 stars. Reviewers often praise the challenging climbs, the diverse ecosystems, and the stunning mountain views, particularly on routes that ascend Palomar Mountain, such as the Palomar Mountain – Lake Henshaw loop from Valley Center.


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