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United States
California
Contra Costa County

Contra Loma Regional Park

The best walks and hikes in Contra Loma Regional Park

5.0

(3)

113

hikers

32

hikes

Hiking in Contra Loma Regional Park encompasses 780 acres centered around the 80-acre Contra Loma Reservoir. The terrain features rolling hills, expansive open spaces, and diverse habitats including grassland, California oak woodland, mixed evergreen forest, and chaparral. Hilly areas provide elevation changes, offering panoramic views of the surrounding mountains and Mount Diablo. The park's natural features include an 80-acre reservoir and varied landscapes.

Best hiking trails in Contra Loma Regional Park

  • The most popular hiking route is Contra Loma Reservoir loop, a 2.7 miles (4.3 km) trail that takes 1 hour 7 minutes to complete. This easy route offers relatively flat terrain with less than 100 feet of elevation gain, circling the scenic reservoir.
  • Another top favourite among local hikers is Rolling Hills Vista Trail, a moderate 4.5 miles (7.2 km) path. This trail ascends through the park's rolling hills, providing panoramic views of the reservoir and distant peaks.
  • Local hikers also love the Oak Woodland Loop, a 3.1 miles (5.0 km) trail leading through shaded oak woodlands and open grasslands, often completed in about 1 hour 30 minutes.
  • Hiking in Contra Loma Regional Park is defined by reservoir views, rolling hills, and diverse open spaces. The network offers options for different ability levels, from accessible loops to more challenging ascents.
  • The routes in Contra Loma Regional Park are highly rated by the komoot community with an average score of 5.0 stars from over 3 reviews. More than 100 hikers have used komoot to explore Contra Loma Regional Park's varied terrain.

Last updated: April 26, 2026

3

hikers

#1.

Old Homestead Loop Trail

6.44km

01:54

190m

190m

Hike the easy 4.0-mile Old Homestead Loop Trail through rolling hills and historical mining areas in Black Diamond Mines Regional Preserve.

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2

hikers

Embark on the East and West Shore Loop Trail for a moderate hike that offers refreshing lake views and seasonal wildflowers. This 4.6-mile (7.4 km) route guides you around the prominent Contra Loma Reservoir, providing a pleasant experience as you walk its shores. You can expect to gain about 393 feet (120 metres) in elevation, making it a good workout without being overly strenuous. Most hikers complete the loop in approximately 2 hours and 2 minutes, leaving plenty of time to enjoy the natural surroundings.

Before you head out, confirm any potential entrance fees or current conditions by checking the Contra Loma Regional Park's official website. Parking is typically available right at the trailhead, which makes starting your hike quite convenient. While there are no specific warnings like snow or road closures usually noted for this trail, it is always wise to verify conditions before your visit. This trail is known to be both dog-friendly and family-friendly, welcoming a wide range of visitors.

The route is a popular choice for those seeking a balanced outdoor adventure within Contra Loma Regional Park. Its accessibility and scenic features, particularly around the reservoir, make it stand out in the area. You will find that the trail offers a consistent and enjoyable experience, perfect for a leisurely outing or a quick escape into nature.

Moderate
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3

hikers

Hike the moderate 7.9-mile Black Diamond Mines Ridge Trail Loop for panoramic views, varied terrain, and historical mining remnants.

Moderate

1

hikers

9.42km

02:46

270m

260m

Hike the moderate Star Mine Trail for 5.9 miles (9.4 km) through historical mining landscapes and scenic views in Black Diamond Mines Region

Moderate

Hike the moderate 5.9-mile Stewartville, Corcoran Mine, and Ridge Loop for panoramic views and varied terrain in Black Diamond Mines Regiona

Moderate
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Popular around Contra Loma Regional Park

MTB Trails in Contra Loma Regional Park

Cycling in Contra Loma Regional Park

Road Cycling Routes in Contra Loma Regional Park

Running Trails in Contra Loma Regional Park

Tips from the Community

Traveler
June 11, 2025, Native American Trails and East Shore Trailhead

Contra Loma Park forms a very large protected green space south of Contra Costa Canal and Antioch Community Park. It preserves some Trails named for the native American groups that once lived and thrived in this watershed, part of which might now be flooded by the Contra Loma Reservoir

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January 12, 2024, Star Mine

This barred tunnel was once a bustling entrance to the Star Mine, one of the most active coal mines in the area, providing a livelihood for many families. The rusted bars that now block the entrance are a stark reminder of the mine's past glory and the hard work that went into extracting coal from deep beneath the earth's surface.

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Contra Loma Reservoir is an 80-acre reservoir located in Contra Loma Regional Park that offers year-round fishing and summer swimming. Additionally, there are hiking and biking trails around the reservoir.

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January 10, 2024, Star Mine

This barred tunnel was once a bustling entrance to the Star Mine, one of the most active coal mines in the area, providing a livelihood for many families. The rusted bars that now block the entrance are a stark reminder of the mine's past glory and the hard work that went into extracting coal from deep beneath the earth's surface.

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This preserve is a treasure trove of history, home to the remnants of three mining towns, including former coal and sand mines. The park features include an underground visitor center, guided tours of a former sand mine, and 60 miles (97 km) of trails to explore that crisscross the rolling foothill terrain. The trails offer stunning views of the surrounding landscape, which is a mix of grassland, California oak woodland, California mixed evergreen forest, and chaparral, making it a nature lover's paradise.

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Contra Loma Reservoir is an 80-acre reservoir located in Contra Loma Regional Park that offers year-round fishing and summer swimming. Additionally, there are hiking and biking trails around the reservoir.

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Excellent dirt single tracks circle around the park and climb the grassy slope up to the Reservoir, splitting into East and West Shore trails

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Frequently Asked Questions

How many hiking trails are available in Contra Loma Regional Park?

Contra Loma Regional Park offers a diverse network of over 19 hiking trails. These routes cater to various skill levels, ranging from easy, accessible loops to more challenging ascents through the park's rolling hills.

Are there easy hiking options for beginners or families in Contra Loma Regional Park?

Yes, the park is very family-friendly and offers several easy trails. The Contra Loma Reservoir loop is particularly suitable, being relatively flat with less than 100 feet of elevation gain over two miles, making it great for families and beginners.

Are dogs allowed on the hiking trails in Contra Loma Regional Park?

Yes, Contra Loma Regional Park is generally dog-friendly. You can bring your pets along for a walk on designated trails, but please ensure they are kept on a leash and that you clean up after them to maintain the park's natural beauty for all visitors.

Are there any circular hiking routes in Contra Loma Regional Park?

Yes, the park features several loop hikes. A prominent example is the Contra Loma Reservoir loop, which circles the 80-acre reservoir, offering continuous scenic views. Another option is the Oak Woodland Loop, which takes you through shaded woodlands and open grasslands.

What kind of wildlife can I expect to see while hiking in Contra Loma Regional Park?

Hikers in Contra Loma Regional Park can observe various wildlife, especially near the reservoir. Common sightings include fish, turtles, and a variety of shorebirds. The park's open spaces and rolling hills also provide habitats for other local fauna.

What are the best times of year to hike in Contra Loma Regional Park?

The park is enjoyable year-round, but spring and fall offer particularly pleasant hiking conditions with milder temperatures and vibrant natural colors. While much of the park is exposed, providing expansive views, some sections offer shade. During summer, consider early morning or late afternoon hikes, and in winter, be prepared for cooler, potentially wetter conditions.

What are some scenic viewpoints or attractions within Contra Loma Regional Park?

The centerpiece of the park is the 80-acre Contra Loma Reservoir, which provides a scenic backdrop for many activities and trails. From various points in the park, you can enjoy expansive views of the surrounding mountains and, on clear days, even Mount Diablo. The contrast of colors from the mountains around the reservoir is particularly spectacular.

Is there parking available for hikers at Contra Loma Regional Park?

Yes, Contra Loma Regional Park offers parking facilities for visitors. There are numerous picnic areas, some reservable, scattered throughout the park, which often have adjacent parking. It's advisable to check the park's official website or map for specific parking lot locations.

Can I reach Contra Loma Regional Park using public transportation?

While direct public transportation options to the park's trailheads might be limited, the park does offer access to the 15-mile Delta de Anza Trail, which connects to various points in the region. For specific public transport routes, it's best to consult local transit authority websites for the most up-to-date information on bus or train services to the Antioch area.

What do other hikers enjoy most about hiking in Contra Loma Regional Park?

The komoot community highly rates the hiking experience in Contra Loma Regional Park, with an average score of 5.0 stars. Hikers often praise the diverse landscapes, the scenic views of the reservoir, and the variety of trails that cater to different fitness levels. The park's peaceful atmosphere and opportunities for wildlife observation are also frequently highlighted.

Are there any longer or more challenging trails in the park?

Yes, while the park is known for its accessible trails, it also offers more challenging options. The hilly terrain throughout the park provides a good workout for hikers seeking more strenuous routes. For example, the Rolling Hills Vista Trail is a moderate 4.5-mile path that ascends through the park's hills, providing panoramic views and a good challenge.

What facilities are available at Contra Loma Regional Park for hikers?

Beyond the trails, the park provides several facilities for visitors. There are numerous picnic areas, some with shade, ideal for post-hike relaxation. During the summer, a lifeguarded swimming lagoon with a sandy beach, changing rooms, and a refreshment stand offers a refreshing way to cool off. Restrooms are also available within the park.

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