The best road cycling routes around San Antonio Heights
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736
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20
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Road cycling around San Antonio Heights, California, offers routes through the foothills of the San Gabriel Mountains. The region is characterized by challenging terrain, including significant climbs and descents, and scenic vistas. Situated at the mouth of San Antonio Canyon, the area provides immediate access to varied road cycling terrain with a mix of suburban and rural settings.
Best road cycling routes around San Antonio Heights
- The most popular road cycling route is Pacific Electric Trail loop from Upland,…
Last updated: July 13, 2026
5.0
(4)
374
riders
73.6km
04:37
1,660m
1,660m
Hard road ride. Very good fitness required. Mostly well-paved surfaces and easy to ride.
81
riders
120km
06:56
2,350m
2,350m
The Rubel Castle – Little Dalton Debris Basin loop from Montclair is a demanding road cycling adventure that promises both a serious workout and unique sights. You'll navigate challenging climbs…
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31
riders
The Puddingstone Reservoir loop cycling route offers a delightful escape on two wheels, circling the expansive 250-acre man-made lake. You'll enjoy continuous scenic views of the water, framed by the…
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(1)
38
riders
42.0km
02:09
130m
130m
Moderate road ride. Good fitness required. Mostly well-paved surfaces and easy to ride.
11
riders
88.5km
03:53
690m
690m
This road cycling loop offers a fascinating journey through Southern California's urban and suburban landscapes, blending unique architectural sights with charming historic districts. You'll pedal past the eccentric Rubel Castle…
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Popular around San Antonio Heights
Tips from the Community
The boulevard is a part of Historic Route 66, which served as a cultural lifeblood of the United States from its inception in 1926 until the construction of interstate highways in the mid-late 1900s.
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You can cycle across the top of the dam, which was constructed in 1928 to help control flooding in the region. It stands at 147 feet high, and today supports a myriad of outdoor recreation activities on the reservoir.
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There are lots of vintage shops and cafes in the historic downtown. Library Park is a great place to rest in the shade with a bite to eat before continuing your ride.
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Old Town Monrovia is a 10‑block historic district centered on Myrtle Avenue, that has brick‑lined sidewalks, vintage lampposts, and boutique shops.
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Monrovia Recreation Park is 22 acres and has playgrounds, picnic shelters, and restrooms. It is a good spot for a break in the shade and some water.
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If you’re riding the Pacific Electric Trail, you’ll pass by Upland Basin, part of the Waterwise Community Center and Chino Basin Water Conservation District. It’s a water reservoir that helps manage stormwater for the area. You can also visit the Waterwise Community Center a few blocks south—they offer free workshops on gardening, irrigation, and more, both online and in person.
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San Gabriel Reservoir is a good place to end your route across the mountains, with dramatic views and wide open space. The road curves above the reservoir, making it a great spot to catch your breath and take in the landscape. Early mornings are quieter and cooler—perfect for a break during a long climb.
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The Pacific Electric Trail is an almost 20-mile long trail that follows the original route of the Pacific Electric Railway. It is mostly paved and is not open to car traffic, but there are points where the trail crosses busy streets.
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Frequently Asked Questions
How many road cycling routes are available in San Antonio Heights?
There are over 20 road cycling routes around San Antonio Heights, offering a variety of experiences for different skill levels. You'll find options ranging from easy, flat rides to challenging mountain climbs.
What kind of terrain can I expect when road cycling around San Antonio Heights?
Road cycling in San Antonio Heights is characterized by the foothills of the San Gabriel Mountains, meaning you can expect challenging terrain with significant climbs and descents. The region offers breathtaking views and a mix of suburban and rural settings.
Are there road cycling routes suitable for beginners in San Antonio Heights?
Yes, San Antonio Heights offers several routes suitable for beginners. There are 6 easy routes available, providing a gentler introduction to road cycling in the area. An example of an easy route is the Upland Basin – Route 66 cycle path loop from Upland, which covers 15.4 miles with moderate elevation gain.
What do other cyclists say about road cycling in San Antonio Heights?
The road cycling routes in San Antonio Heights are highly rated by the komoot community, with an average score of 5.0 stars from over 6 reviews. Cyclists often praise the varied terrain and scenic vistas available in the region.
Are there any notable landmarks or scenic viewpoints along the road cycling routes?
Yes, the region offers several scenic viewpoints and natural features. While cycling, you'll encounter stunning views of the San Gabriel Mountains. Notable natural monuments in the broader area include Cucamonga Peak and Icehouse Saddle, which provide majestic backdrops to your rides.
How challenging is cycling Glendora Ridge Road?
Glendora Ridge Road, located on the boundary of San Bernardino and Los Angeles counties, is known for its demanding hills and breathtaking views. It offers a challenging yet rewarding experience for road cyclists seeking significant climbs.
Can I road cycle on the Marshall Canyon Trail?
The Marshall Canyon Trail is primarily a multi-use trail known for its oak tree cover and significant climbing. While scenic, its surface may not be ideal for all road bikes, as it's not exclusively paved. It's best to check the specific trail conditions if you plan to ride it on a road bike.
Are there any long-distance road cycling routes in the area?
Yes, for those seeking longer rides, San Antonio Heights offers routes like the Rubel Castle – Monrovia Historic Downtown loop from Upland. This moderate route spans 54.9 miles (88.5 km) and features significant elevation gain, connecting various points of interest across the region.
What is the best time of year for road cycling in San Antonio Heights?
Given its location in the foothills of the San Gabriel Mountains, San Antonio Heights generally offers pleasant cycling conditions for much of the year. Spring and fall typically provide mild temperatures, ideal for tackling the region's climbs and enjoying the scenic vistas. Summers can be warm, so early morning rides are often preferred.
Are there any circular road cycling routes in San Antonio Heights?
Yes, many of the road cycling routes in San Antonio Heights are designed as loops, allowing you to start and end at the same point. An example is the Pacific Electric Trail loop from Upland, a 26.1-mile route that offers a consistent path suitable for road bikes.
Are there any routes that pass through local park areas?
Yes, some routes will take you through local park areas, offering a different kind of scenery. For instance, the Jaeger Park loop from Desilting Basin G is a 17.4-mile trail that leads through local park areas, often completed in about 1 hour 32 minutes.
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