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United States
California
Santa Cruz County

Castle Rock State Park

The best gravel rides in Castle Rock State Park

5.0

(4)

49

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Gravel biking in Castle Rock State Park offers access to an extensive regional trail network within the Santa Cruz Mountains. The area is characterized by sculpted sandstone formations, lush forests of California black oaks and redwoods, and significant elevation changes. Riders can expect diverse terrain, from rugged paths to connecting trails that link to other open space preserves. The park's location provides sweeping vistas of the San Lorenzo Valley and Monterey Bay on clear days, making it a notable destination for challenging gravel routes.

Best gravel bike trails in Castle Rock State Park

  • The most popular gravel bike trail is West Old La Honda Road – Hickory Oaks Trail loop from Long Ridge Open Space Preserve, a 33.5 miles (54.0 km) trail that takes 3 hours 50 minutes to complete. This difficult route navigates varied terrain connecting multiple open space preserves.
  • Another top favourite among local gravel bikers is White Oak Trail – Old Ranch Trail loop from Picchetti Ranch Open Space Preserve, a difficult 25.9 miles (41.8 km) path. This loop offers a mix of forested sections and open areas with considerable elevation gain.
  • Local gravel bikers also love the Sempervirens Falls – Gazos Creek Beach loop from Sempervirens Falls, a 36.5 miles (58.8 km) trail leading through diverse landscapes including waterfalls and coastal connections, often completed in about 5 hours 8 minutes.
  • Gravel biking in Castle Rock State Park is defined by sculpted sandstone formations, lush redwood forests, and sweeping mountain vistas. The extensive trail network offers options for experienced riders seeking challenging routes with significant climbs.
  • The routes in Castle Rock State Park are highly rated by the komoot community with an average score of 5.0 stars. More than 10 gravel bikers have used komoot to explore Castle Rock State Park's varied terrain.

Last updated: July 12, 2026

3

riders

#1.

West Old La Honda Road – Hickory Oaks Trail loop from Long Ridge Open Space Preserve

54.0km

03:51

1,160m

1,160m

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

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Hard

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard
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Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Moderate gravel ride. Good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Moderate

Hard gravel ride. Very good fitness required. Mostly paved surfaces. Suitable for all skill levels.

Hard

Our route recommendations are based on thousands of hikes, rides, and runs completed by other people on komoot.

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Popular around Castle Rock State Park

Bay Area Ridge Trail β€” Circumnavigating the San Francisco Bay

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Hiking in Castle Rock State Park

Running Trails in Castle Rock State Park

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Bay Area Ridge Trail β€” Circumnavigating the San Francisco Bay

Cycling Collection by

Andrus

Tips from the Community

Alex
May 8, 2025, Stevens Creek Reservoir

Stevens Creek Reservoir spans 87 acres and is surrounded by a 1,063-acre park. Visitors can enjoy hiking, horseback riding, picnicking, and limited fishing. Seasonal boating for low-power boats is available from mid-April to mid-October. The park is open daily from 8 a.m. to sunset, with vehicle entry fees collected year-round at the Chestnut parking lot. Visitors can explore natural beauty and historic remnants like the Villa Maria orchard.

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Redwood trees are some of the tallest and oldest living organisms on Earth. Towering up to 350 feet, these majestic trees can live for over 2,000 years. Found primarily along the coast of Northern California, redwoods thrive in the cool, foggy climate. Their thick, reddish bark provides protection from fire and insects, making them incredibly resilient. Walking among these giants is a humbling experience, with their sheer size and age creating an awe-inspiring atmosphere.

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Gazos Creek Road in Big Basin is a peaceful trail that immerses you in the beauty of the Santa Cruz Mountains. As you hike, you'll walk through towering redwoods and dense forest, with the sound of the creek nearby adding to the calming atmosphere. The trail offers a quiet escape, with less foot traffic, allowing you to fully experience the area's natural serenity. It’s a great choice for those looking to enjoy a more remote, scenic part of Big Basin while staying connected to nature.

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Andrus
December 30, 2024, Chalks Road

Great ride along the ridgeline. There's some steep sections, nice views, and a good chance to spot some wildlife.

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The Tonyon and Bayview Trails converge at this point to offer a great view across the bay.

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AaronLavanchy
February 13, 2024, Boulder Creek

Boulder Creek sits just below the Santa Cruz Mountains and is the gateway to Big Basin Redwoods State Park. The downtown area offers bars and restaurants that occupy buildings dating back to the early 1900s.

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Javi Jaavii
February 6, 2024, Butano Peak

This peak is the highest point of Butano State Park, sharing its name with the park itself. If you're cycling on Butano Fire Road, you'll pass by it. As an interesting fact, the name "butano" originates from how early Californians referred to a beverage made from the horn of a bull or another animal, although other sources suggest it may also have a Native American origin.

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Unfortunately, in 2020, this area was affected by the CZU Lightning Complex Fire, but it is currently recovering, and a temporary visitor center has been opened.

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Frequently Asked Questions

What kind of terrain can I expect on gravel bike trails in Castle Rock State Park?

Gravel biking in the Castle Rock State Park area features diverse and challenging terrain. You'll encounter sculpted sandstone formations, lush forests of California black oaks and redwoods, and significant elevation changes. Routes often involve rugged paths and connections to other open space preserves, providing a mix of forested sections and open areas with considerable climbs.

Are there any easy or beginner-friendly gravel bike routes in the park?

The gravel bike routes in the immediate Castle Rock State Park area, and the broader network it connects to, are generally considered challenging. All routes listed in this guide are rated as 'difficult' due to significant elevation gains and varied terrain. Riders should be prepared for demanding climbs and technical sections. For example, the West Old La Honda Road – Hickory Oaks Trail loop involves over 1100 meters of ascent.

What are some notable natural features or landmarks to look out for?

The region is known for its unique natural beauty. You can expect to see distinctive sculpted sandstone formations, including the park's namesake Castle Rock. From various points, you'll find panoramic views of the San Lorenzo Valley and, on clear days, even Monterey Bay. A specific highlight is Castle Rock Falls, a scenic 75-foot waterfall with a viewing deck.

Can I find routes that include waterfalls?

Yes, some routes in the broader area will take you past waterfalls. For instance, the Sempervirens Falls – Gazos Creek Beach loop leads through diverse landscapes and includes the scenic Castle Rock Falls.

What do other gravel bikers enjoy most about the area?

The gravel biking experience in Castle Rock State Park is highly rated by the komoot community, with an average score of 5.0 stars. Riders frequently praise the challenging nature of the routes, the diverse landscapes ranging from lush redwood forests to open vistas, and the sense of adventure provided by the extensive regional trail network. The significant climbs are often highlighted as a rewarding challenge.

Are there any circular gravel bike routes available?

Yes, many of the popular gravel routes in the Castle Rock State Park area are designed as loops. Examples include the challenging West Old La Honda Road – Hickory Oaks Trail loop and the White Oak Trail – Old Ranch Trail loop, both offering extensive rides through varied terrain.

Is Castle Rock State Park suitable for family gravel biking?

The gravel bike routes in and around Castle Rock State Park are generally quite challenging, featuring significant elevation gains and rugged terrain. All routes listed in this guide are rated as 'difficult'. While the park offers general trails, the gravel biking opportunities are more suited for experienced riders seeking a demanding adventure rather than casual family outings.

Are dogs allowed on the gravel bike trails?

While Castle Rock State Park is generally dog-friendly on many hiking trails, specific rules apply to cycling paths and the broader regional network. It's best to check the official park regulations regarding dogs on trails where bikes are permitted, especially on the Skyline Trail (Bay Area Ridge Trail) which connects to the park. Always keep dogs on a leash and be mindful of other trail users.

Where can I park when visiting Castle Rock State Park for gravel biking?

Parking is available at designated areas within or near Castle Rock State Park. The park itself has parking facilities, and access points to the broader trail network, such as Long Ridge Open Space Preserve or Picchetti Ranch Open Space Preserve, also offer parking options. Always check for any parking fees or specific regulations before your visit.

What is the best time of year for gravel biking in Castle Rock State Park?

The Santa Cruz Mountains generally offer good conditions for gravel biking for much of the year. Spring and fall often provide pleasant temperatures and clear skies, making them ideal. Winter can bring rain, which might make some trails muddy or more challenging. Summer can be warm, so starting early in the day is advisable. Always check local weather forecasts and trail conditions before heading out.

Are there any cafes or restaurants near the park for post-ride refreshments?

While Castle Rock State Park itself is a wilderness area, you can find cafes and restaurants in nearby towns. Boulder Creek, Saratoga, and Los Gatos are some of the communities in the vicinity that offer dining options and places to refuel after your ride.

What kind of wildlife might I encounter on the trails?

The park is home to diverse wildlife. You might spot deer, various bird species, and smaller mammals. Keep an eye out for banana slugs, a local icon. While less common, bobcats and mountain lions also inhabit the area. Always maintain a respectful distance and never feed wildlife.

Most popular routes in Castle Rock State Park

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