1.
California Black Walnut Trees loop from Mount San Antonio College
7.38km
00:48
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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By Fede from komoot
Β·
Updated May 31, 2026
If you've ever tried to find the best jogging routes around Diamond Bar, you know how quickly the options can feel overwhelming. It's tough to tell which trails are genuinely worth your effort and which are just filler. That's where komoot comes in: our community has explored, mapped, and reviewed these routes, so we've done the legwork to bring you a curated shortlist of what's genuinely worth your legs.
Jogging around Diamond Bar means embracing its distinct character: rolling hills, extensive trail networks, and beautiful open spaces dotted with native trees like Coast Live Oak and Sycamore. You'll find everything from moderate jogs to more challenging runs, all set against a backdrop of scenic views. The good news is the mild and pleasant climate here means you can enjoy these trails year-round.
If you only do one route, we'd start with the California Black Walnut Trees loop from Mount San Antonio College. It's a local favorite, offering a moderate 4.6 miles (7.4 km) through native vegetation, perfect for a refreshing morning run. For something a little different, the Running loop from Chino Hills is another top pick, a moderate 4.8 miles (7.8 km) with fantastic views of the San Gabriel Valley. More than 400 runners have already used komoot to explore Diamond Bar's varied terrain, so dive in and find your next favorite route!
Trail | Distance | Elevation | Difficulty |
|---|---|---|---|
| California Black Walnut Trees loop from Mount San Antonio College | 7.38Β km | 70Β m | Moderate |
| Running loop from Chino Hills | 7.75Β km | 90Β m | Moderate |
| Running loop from Nogales High School | 8.92Β km | 110Β m | Moderate |
| Running loop from Mount San Antonio College | 3.32Β km | 50Β m | Easy |
| Running loop from Calle San Marcos Park | 5.39Β km | 80Β m | Moderate |
| Running loop from California State Polytechnic University, Pomona | 10.6Β km | 100Β m | Moderate |
| Running loop from Walnut | 6.99Β km | 90Β m | Moderate |
| Running loop from 2253 | 5.18Β km | 20Β m | Moderate |
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7.38km
00:48
70m
70m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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7.75km
00:50
90m
90m
This moderate 4.8-mile (7.8 km) running loop in Chino Hills offers a fantastic blend of varied terrain and scenic beauty, with 293 feet (89 metres) of elevation gain that you can conquer in about 49 minutes. You'll find yourself jogging through rolling hills, past oak woodlands and sage scrub, with plenty of chances to take in panoramic views of the surrounding landscape. Keep an eye out for wildflowers, especially if you visit in the spring, adding a vibrant touch to your run.
Accessing the Chino Hills trail network is generally easy, with the area well-connected by Southern California freeways. While specific parking for this particular loop isn't detailed, numerous trailheads provide entry to the extensive system. It's always wise to bring plenty of water, particularly during warmer periods, and consider heading out in the early morning or late afternoon for the most comfortable conditions.
Chino Hills is renowned for its diverse ecosystems and expansive open spaces, offering a natural immersion experience for joggers. The trails here provide a mix of packed dirt double tracks and paved sections, catering to different preferences. This route is a great example of the area's appeal, providing a solid workout within a beautiful natural setting, making it one of the best jogging routes in Chino Hills for those seeking a balanced challenge.
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8.92km
00:59
110m
110m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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3.32km
00:24
50m
50m
The Running loop from Mount San Antonio College offers a pleasant and straightforward jogging experience, winding through a mix of packed dirt and paved surfaces. You'll find yourself in the scenic Southern California setting of Walnut, nestled between the San Gabriel Mountains and the Pacific Ocean, though this particular route avoids the college's more notorious climbs like "Poop Out Hill." It's an easy 2.1-mile (3.3 km) loop, ideal for a quick, low-impact workout.
Planning your visit is simple, as the college grounds are generally open. You can typically find parking near the stadium and its associated parking structure. This specific running trail is known to be always accessible, making it a convenient choice for a spontaneous jog or a regular fitness routine. Consider visiting during cooler parts of the day, especially in warmer months.
Mount San Antonio College holds a significant place in the cross-country community, hosting prestigious events like the Mt. SAC Relays for over 70 years. While this particular loop is an easy 24-minute jog with only 152 feet (46 metres) of elevation gain, it's part of a campus steeped in competitive running history. It's a great way to experience the college's athletic environment without committing to its more demanding, world-famous courses.
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5.39km
00:34
80m
80m
The Running loop from Calle San Marcos Park offers a delightful and accessible jogging experience, winding through lush greenery that provides a peaceful ambiance. You'll find well-defined pathways that make for a smooth run, with gentle inclines that keep things interesting without being overly strenuous. It's a great spot to enjoy nature and get some exercise within the city limits of Chino Hills.
Planning your visit to this park is easy, as it's designed to be highly accessible for all. There's ample parking available, making it convenient to start your run whenever you're ready. The park's well-maintained environment means you can enjoy this moderate 3.4-mile (5.4 km) loop, with its 261 feet (80 metres) of elevation gain, in about 34 minutes, any time of day.
Beyond just jogging, Calle San Marcos Park is a versatile destination, featuring a playground, a full basketball court, a volleyball court, and picnic areas. This makes it a fantastic option for families or for combining your run with other outdoor activities. It's a true community hub, offering more than just a running route.
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10.6km
01:08
100m
100m
This running loop from California State Polytechnic University, Pomona offers a dynamic experience, blending campus pathways with more rugged trail sections. You'll navigate varied terrain, from paved stretches to natural dirt paths found behind parking lots M, J, and Building 1, providing a true trail running feel. Keep an eye out for the iconic Kellogg mansion and enjoy scenic views of the San Gabriel Mountains as you make your way around the campus perimeter.
To tackle this moderate 6.6-mile (10.6 km) route, which involves 342 feet (104 metres) of elevation gain and takes about 1 hour and 7 minutes, plan your visit during cooler parts of the day. Parking is available on campus, but it's always a good idea to check university guidelines for visitor parking. This loop is a convenient option for students and locals looking for a solid workout without needing to drive far.
While the campus itself provides a great running environment, the broader Pomona area is rich with diverse trail options, including those in nearby Frank G. Bonelli Regional Park. This loop offers a taste of the varied terrain available, from gentle inclines to more challenging sections, making it a good choice for those looking to explore the Cal Poly Pomona campus running spots and beyond.
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6.99km
00:46
90m
90m
Moderate run. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.
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5.18km
00:32
20m
20m
The "Running loop from 2253" is a misnomer for joggers, as this 3.2-mile (5.2 km) route with 57 feet (17 metres) of elevation gain is actually FS 2253 in Michigan, a single-lane sandy two-track. Rated as moderate in terms of distance and elevation, its true difficulty for running comes from the terrain, which is prone to deep mud and water holes after rain. Expect a natural, wooded environment, but be prepared for extremely challenging conditions underfoot, making it unsuitable for a typical jog.
If you're considering this route, understand that it's primarily an off-road trail, not a running path. The estimated duration of 32 minutes is highly optimistic given the potential for impassable sections. Limited cell phone service in the area means you should not rely on your phone for navigation or emergencies. This is not a running location to visit without significant caution and an understanding of its true nature.
FS 2253 is known for its potential for significant mud and deep water, making it more appropriate for off-road vehicles with recovery equipment. This characteristic sets it apart from typical running loops near 2253, and it's important to note that the
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There are over 50 running routes around Diamond Bar, offering a variety of distances and difficulty levels. The komoot community has explored 59 routes in total, ranging from easy strolls to more challenging runs through the region's hilly terrain.
Yes, Diamond Bar offers several easy jogging routes suitable for beginners. For instance, the Running loop from Mount San Antonio College is an easy 2.1-mile (3.3 km) path, perfect for a gentle run. The city's extensive trail network includes options for all fitness levels.
Jogging routes in Diamond Bar are characterized by rolling hills and varied terrain. Many trails, especially in areas like Summit Ridge and Pantera Park, feature steep slopes that provide a challenging workout and reward runners with breathtaking views of the San Gabriel Valley and mountains. Other trails, like those in Sycamore Canyon Park, offer more shaded, gentler paths along creeks.
Yes, many of Diamond Bar's running paths are designed as loops, allowing for continuous runs without retracing your steps. The Summit Ridge Trail System, for example, offers excellent loop opportunities ranging from 1.3 to 1.5 miles, including the Ridge Route and Canyon Route. The California Black Walnut Trees loop from Mount San Antonio College is another popular circular route.
Many trails in Diamond Bar are dog-friendly, but leash laws typically apply. It's always best to check specific park regulations before heading out. The city's commitment to open spaces means there are plenty of natural areas where you and your canine companion can enjoy a run together.
Diamond Bar's trails wind through preserved open spaces, allowing you to experience native trees like Coast Live Oak, Laurel Sumac, Common Fig, and Sycamore. You might also spot local wildlife such as white-tailed deer, Virginia opossums, and red-tailed hawks, especially in parks like Sycamore Canyon, which even features a waterfall observation deck.
Yes, several routes offer scenic views and access to interesting points. For instance, the trails in Pantera Park provide some of the most beautiful vistas in Diamond Bar. You can also explore natural monuments like Mt. San Antonio Wildlife Sanctuary or the Redwood Grove. Some trails, like the Peterson Park Trail, lead to benches offering great sunset views.
The running routes in Diamond Bar are highly rated by the komoot community, with an average score of 5.0 stars. Runners often praise the diverse terrain, the scenic views of the San Gabriel Valley and mountains, and the extensive network of trails that cater to various ability levels. The presence of native trees and wildlife also adds to the natural experience.
Absolutely. Due to Diamond Bar's hilly landscape, many routes provide stunning views of the surrounding San Gabriel Valley and mountains. The Summit Ridge Trail System, in particular, offers dramatic vistas, and the Running loop from Chino Hills also provides excellent mountain views.
While many trails are easily accessible by car with parking available, public transport options to specific trailheads can vary. For detailed information on public transport routes and schedules to parks like Sycamore Canyon Park or Summitridge Park, it's advisable to check local transit authority websites.
Many of Diamond Bar's parks and trailheads offer dedicated parking facilities. For example, Sycamore Canyon Park, Peterson Park, and Pantera Park all have parking available for visitors. It's generally recommended to check specific park websites or komoot route details for precise parking locations.
Yes, Diamond Bar offers several challenging routes. The Pantera Park Trail, for instance, features steep slopes with grades up to 29%, providing a rigorous workout. The Summit Ridge Trail System also includes routes with significant elevation changes, perfect for experienced runners seeking a challenge.


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