4.9
(19)
215
riders
7
rides
Mountain biking around Fullerton offers a diverse network of trails that integrate natural sections within an urban environment. The region features varied topography with hills providing elevation changes and scenic overlooks. Urban greenways, parks, and preserves contribute to a landscape that blends city life with accessible outdoor spaces for mountain biking.
Last updated: June 28, 2026
4.8
(9)
40
riders
18.6km
01:35
330m
330m
Hard mountain bike ride. Good fitness required. Advanced riding skills necessary. Some portions of the route may require you to push your bike.
29
riders
10.8km
01:04
220m
220m
Hard mountain bike ride. Great for any fitness level. Advanced riding skills necessary. Some portions of the route may require you to push your bike.

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18
riders
15.5km
01:32
450m
450m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
5.0
(1)
10
riders
43.3km
02:57
130m
130m
Moderate mountain bike ride. Good fitness required. Suitable for all skill levels.
9
riders
11.4km
01:08
250m
250m
Easy mountain bike ride. Great for any fitness level. Suitable for all skill levels.
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The Uplands Trail is a short, .7-mile, relatively easy path; however, it is rocky and uneven in some areas. The trail provides access to the Mountain Top and Log trails and offers nice elevation changes along the way. While on this route, you'll see plenty of wildlife, including deer, fox and several bird species, as you immerse yourself in the beautiful forest with trees over 100 years old.
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The Lehigh Overlook is a pull-off and viewpoint on the side of Lower Sayre Park Road. It overlooks the town of Bethlehem on the other side of the river with the campus tucked in the trees just below the overlook.
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The Lehigh Overlook is a pull-off and viewpoint on the side of Lower Sayre Park Road. It overlooks the town of Bethlehem on the other side of the river with the campus tucked in the trees just below the overlook.
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This is all that's left of the stonework building that was once the pottery for Moravian settlers. The building later served as a cloth-making and weaving workshop, and as housing too.
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This is all that's left of the stonework building that was once the pottery for Moravian settlers. The building later served as a cloth-making and weaving workshop, and as housing too.
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This 350-foot bridge, constructed in the early 1900s, spans the Lehigh River, connecting to the D&L Trail. This location is an excellent spot to enjoy views of the water and take some scenic pictures.
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This park is located at the confluence of the Delaware River and the Lehigh River. The park has several benches for observing the water, taking a break, and enjoying the waterfront views.
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The South Mountain Trails are a mix of terrain and difficulty, so worth checking for more info before riding here. The trails are generally packed earth, but are stony in places. It is a beautiful preserve, rich in wildlife and with many large boulders.
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There are 5 mountain bike routes detailed in this guide for Fullerton, offering a range of experiences from easy to moderate difficulty. The komoot community has explored over 120 mountain biking tours in the area.
For those looking for an easier ride, consider the Lehigh Mountain Park loop from Sterner's Island, which is 11 km long and takes about 1 hour 5 minutes. Another easy option is the Lehigh Mountain Park loop from Bethlehem, a shorter 9.6 km route typically completed in under an hour.
Yes, many of the mountain bike routes in Fullerton are designed as loops. For example, the Lehigh Mountain Park loop from Bethlehem is a popular 19.5 km circular trail, and the Lehigh Mountain Park loop from Hanover Township offers a longer 24.5 km loop with consistent climbs and descents.
Fullerton's mountain biking trails offer a diverse terrain that integrates natural sections within an urban environment. You'll find urban greenways, singletrack sections, and varied topography with hills that provide elevation changes. Some trails, like parts of the iconic Fullerton Loop, even feature challenging climbs with roots, as well as opportunities for jumps, drops, and berms.
The mountain biking routes in Fullerton are highly regarded by the komoot community, holding an impressive average rating of 4.8 stars from over 17 reviews. Riders often praise the varied terrain and the way the trails blend natural spaces with the urban landscape, offering a unique and accessible outdoor experience.
While specific family-friendly routes are not detailed in the guide, the region offers trails suitable for various skill levels. The Juanita Cooke Greenbelt Trail, which is part of the larger Fullerton Loop, is known for being an easy route ideal for families. Laguna Lake Park also features an easy loop trail suitable for all skill levels.
Fullerton's trails offer a blend of urban greenways and natural pockets. The Panorama Trail, for instance, provides sweeping vistas of the San Gabriel Mountains and Orange County. You can also find tranquil natural retreats like Laguna Lake Park and expansive green spaces in parks such as Hillcrest Park and Craig Regional Park.
Yes, there are several interesting places to explore nearby. You could visit the historic Bethlehem Steel Plant, enjoy the natural beauty of Trexler Nature Preserve, or explore the scenic Jordan Creek Parkway. The Stone Bridges of Lehigh Parkway are also a notable feature in the area.
Fullerton generally offers pleasant weather for outdoor activities. While specific seasonal recommendations for mountain biking aren't provided, the mild climate of Southern California typically allows for comfortable riding throughout much of the year, with cooler temperatures in fall and winter often being ideal.
Yes, for those seeking a moderate challenge, routes like the Mountainbike loop from Bethlehem, which is 15.5 km long with significant elevation changes, are available. The Lehigh Mountain Park loop from Bethlehem (19.5 km) also features varied terrain and elevation changes, providing a good workout.
Absolutely. Fullerton's trail system is known for cleverly integrating natural sections within its suburban environment. The iconic Fullerton Loop, for example, winds through urban greenways, singletrack sections, and even into portions of Brea, offering a unique 'behind the scenes' experience where city life intertwines with nature.


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