4.7
(299)
9,878
riders
291
rides
Road cycling in Contra Costa County offers diverse landscapes, from challenging ascents to scenic valley rides. The region is characterized by prominent features such as Mount Diablo, the Oakland-Berkeley Hills, and the Carquinez Strait, providing varied terrain for cyclists. Inland valleys and extensive trail networks like the Contra Costa Canal Trail and Iron Horse Regional Trail also contribute to the area's appeal for road cycling. This blend of natural features creates a range of routes suitable for different skill levels.
β¦Last updated: April 24, 2026
5.0
(9)
278
riders
48.5km
02:57
1,140m
1,140m
Mount Diablo via Summit Road presents a challenging road cycling experience, covering 30.1 miles (48.5 km) with a significant elevation gain of 3745 feet (1141 metres). This difficult route, estimatedβ¦
4.3
(9)
156
riders
43.1km
02:05
350m
350m
Embark on the Lamorinda Trail Loop, a moderate road cycling adventure spanning 26.8 miles (43.1 km) with an elevation gain of 1147 feet (350 metres). You can expect to completeβ¦

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5.0
(1)
124
riders
69.6km
03:44
1,060m
1,060m
Take on the Lake Chabot Loop, a difficult racebike route that covers 43.3 miles (69.6 km) and climbs 3477 feet (1060 metres). This challenging ride typically takes around 3 hoursβ¦
4.7
(6)
107
riders
48.9km
02:31
700m
700m
Embark on the Carquinez Scenic Drive loop, a moderate road cycling route spanning 30.4 miles (48.9 km) with a total elevation gain of 2297 feet (700 metres). You can expectβ¦
4.5
(2)
93
riders
48.5km
02:27
760m
760m
Embark on a moderate road cycling journey through the Lamorinda Trail Loop, a 30.1-mile (48.5 km) route designed for a rewarding two hours and 27 minutes in the saddle. Youβ¦
3.0
(1)
51
riders
80.1km
03:59
1,010m
1,010m
Embark on the Lamorinda Trail & Carquinez Scenic Drive loop, a difficult racebike route that challenges you with 49.7 miles (80.1 km) and a significant 3320 feet (1012 metres) ofβ¦
5.0
(4)
60
riders
38.6km
01:42
280m
280m
Embark on the Dougherty Valley loop for an easy road cycling experience, covering 24.0 miles (38.6 km) with a gentle elevation gain of 916 feet (279 metres). You can expectβ¦
5.0
(1)
38
riders
74.4km
03:57
1,360m
1,360m
Embark on the Lamorinda and Briones Loop, a difficult road cycling adventure spanning 46.2 miles (74.4 km) with a significant 4463 feet (1360 metres) of elevation gain. This route offersβ¦
47
riders
51.8km
02:16
290m
290m
Embark on the Iron Horse and Tassajara Loop for a moderate road cycling adventure that spans 32.2 miles (51.8 km). You will gain 960 feet (293 metres) in elevation, typicallyβ¦
5.0
(1)
48
riders
88.3km
04:22
1,170m
1,170m
Embark on the Carquinez Strait loop, a difficult road cycling route spanning 54.9 miles (88.3 km) with a significant 3831 feet (1168 metres) of elevation gain. This challenging ride, estimatedβ¦
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Popular around Contra Costa County
Road Cycling Routes in Tilden Regional Park
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Road Cycling Routes around North Gate
Road Cycling Routes around Walnut Creek
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Road Cycling Routes in Diablo Foothills Regional Park
This overlook is just one of many along the car-free road that boasts breathtaking views of the bay. The wide shoulder provides ample space to pause, take a deep breath, and marvel at the natural beauty that surrounds you.
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In this area of the Sobrante Ridge Regional Preserve, visitors can find the Sobrante Ridge Trailhead. The preserve is 277 acres in size and is a parkland that preserves the habitat of the extremely rare Alameda manzanita. It is an important home to indigenous plants and animals in this area.
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Mount Diablo, is the Bay Area second-highest peak at 1173m (3849ft). The challenging climb features constantly fluctuating gradients averaging 8%, with tough sections up to 18% and a brutal 23% finish in the last 200m. The equally demanding descent requires good bike handling due to tight corners, potholes, and strong winds. The road to the top is open daily from 8 AM till sunset.
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This road parallels the ridgeline above and have great views over the bay and surrounding hills.
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The reservoir is a definite scenic highlight, and you can expect to see plenty of people kayaking, fishing, and hiking on and off the water. San Pablo Dam Road takes you to a couple different boat launches and picnic areas with views of the water. Old San Pablo Dam Road is more scenic and winds along the shore, but the surface is quite old and, while technically paved, is really better suited for a gravel bike.
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The Lafayette-Moraga Regional Trail is a 7.65-mile path that runs through Moraga Valley, connecting Las Trampas Ridge with Oakland Hills.
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This charming lake sits along the Ygnacio Canal Trail at Heather Farm Park. The park features two lakes, open grassy areas, playgrounds, picnic tables, and other facilities. The lake and surrounding areas are a great spot to take a break while cycling the Ygnacio Canal Trail.
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Lafayette is a city in Contra Costa County, California, with a population of 25,391 as of 2020. Named after the Marquis de Lafayette, a French officer in the American Revolutionary War, landmarks include the Lafayette Library and Learning Center, Oakmont Memorial Park, and the Cross of Lafayette Memorial, a somewhat controversial tribute to U.S. soldiers who died in Iraq. Lafayette is also home to the historic Park Theater, which closed in 2005 but is currently being considered for reopening. This is a great town to pass through, or start and/or end a ride.
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Contra Costa County offers a wide variety of road cycling experiences, with over 300 routes available on komoot. These routes cater to all skill levels, from easy valley rides to challenging mountain ascents.
The region boasts diverse terrain. You'll find challenging ascents around Mount Diablo and the Oakland-Berkeley Hills, scenic routes along the Carquinez Strait, and gentler rides through inland valleys and agricultural lands. Extensive trail networks like the Contra Costa Canal Trail and Iron Horse Regional Trail also provide varied surfaces.
Yes, Contra Costa County has numerous easy routes. For instance, the Dougherty Valley loop β San Ramon is an easy option. Many inland valley routes and sections of the Contra Costa Canal Trail or Iron Horse Regional Trail also offer flatter, more accessible rides perfect for those seeking a relaxed experience or cycling with family.
Experienced riders seeking a challenge will find plenty to test their limits. The iconic Mount Diablo via Summit Road β Walnut Creek is a difficult route with significant elevation gain. Other demanding options include the Lake Chabot Loop and the Alhambra Valley loop β Contra Costa County, both featuring substantial climbs.
Many routes offer breathtaking scenery. Ascents of Mount Diablo provide panoramic views that can stretch to the Farallon Islands and the Sierra Nevada on clear days. Routes along the Carquinez Strait offer picturesque water views, while inland valleys showcase agricultural landscapes and open spaces. In spring, wildflowers often blanket the hillsides, adding to the visual appeal.
Yes, Contra Costa County features many excellent loop routes. Popular options include the Lafayette loop β Walnut Creek, the Carquinez Scenic Drive loop β Concord, and the Carquinez Strait loop β Martinez, providing diverse experiences without retracing your path.
Beyond the natural beauty, you can explore various points of interest. Notable peaks like Mount Diablo Summit and Eagle Peak offer stunning vistas. For a unique experience, some routes pass near interesting geological features such as the Sandstone caves in Castle Rock formations or the Wind Caves.
The region generally offers good cycling conditions year-round. Spring is particularly beautiful with wildflowers, while fall provides pleasant temperatures and clear skies. Summers can be warm, especially in inland areas, so early morning rides are often preferred. Winters are mild, making it possible to cycle, though some higher elevations might experience cooler temperatures.
Yes, for those looking for longer rides, Contra Costa County has several options. The Lamorinda Trail & Carquinez Scenic Drive loop β Lafayette covers over 80 km, and the Carquinez Strait loop β Martinez is nearly 90 km, offering extensive distances and varied scenery.
The area is highly rated by the komoot community, with an average score of 4.6 stars from over 250 reviews. Reviewers often praise the diverse landscapes, from challenging mountain climbs to scenic coastal and valley rides, and the extensive network of well-maintained trails that cater to all abilities.
Many regional parks and trailheads throughout Contra Costa County offer designated parking areas for visitors. Specific parking information is often available on individual route pages on komoot or through local park district websites. It's advisable to check the starting point of your chosen route for the most accurate parking details.
Yes, extensive trail networks like the Contra Costa Canal Trail and the Iron Horse Regional Trail run through central Contra Costa County, providing continuous paved sections that connect various towns and natural areas. These trails are excellent for linking different cycling experiences or for longer, continuous rides across the region.


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