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Routes
Hiking trails & Routes
United States
California
Santa Cruz County

Summit Rock Loop Trail

Easy

4.8

(4007)

5,962

hikers

Summit Rock Loop Trail

01:21

4.27km

160m

Hiking

Hike the easy 2.7-mile Summit Rock Loop Trail in Castle Rock State Park, winding through redwoods to Indian Rock and scenic mountain views.

Last updated: February 26, 2026

Waypoints

A

Start point

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1

615 m

Indian Rock

Highlight • Climb

Indian Rock, natural climbing spot is located at the entrance of the Sanborn-Skyline County Park. The rock consists of Sandstone but don't have the red colors that are so commonly found in the American southwest.

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4.27 km

End point

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Way Types & Surfaces

Way Types

2.30 km

1.74 km

141 m

< 100 m

Surfaces

2.18 km

1.88 km

127 m

< 100 m

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Elevation

Elevation

Nothing selected – click and drag below to see the stats for a specific part of the route.

Highest point (930 m)

Lowest point (790 m)

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Weather

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Wednesday 8 July

24°C

8°C

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Frequently Asked Questions

Where can I park for the Summit Rock Loop Trail?

The trail is located within Sanborn County Park. You can typically find parking at the main entrance of Sanborn County Park. Be aware that parking lots can fill up, especially on weekends.

Is the Summit Rock Loop Trail suitable for beginners or families?

Yes, this trail is generally considered easy to moderate, making it a good option for beginners and families. While some sections may have uneven terrain, it's not overly challenging and offers a pleasant, shaded experience.

What is the best time of year to hike this trail?

Spring is an excellent time to visit, as the trail is lined with beautiful wildflowers like violet lupine and larkspur. However, be aware that parts of Summit Rock may be closed between February and August due to peregrine falcon nesting. Fall also offers pleasant hiking conditions.

Are dogs allowed on the Summit Rock Loop Trail?

Dogs are generally allowed on trails within Sanborn County Park, but they must be kept on a leash at all times. Please check specific park regulations before your visit.

Do I need a permit or is there an entrance fee for Castle Rock State Park?

While the Summit Rock Loop Trail is primarily in Sanborn County Park, it's adjacent to Castle Rock State Park. Castle Rock State Park typically has a day-use parking fee. It's always best to check the official California State Parks website for the most current fee information and any permit requirements.

What kind of terrain and scenery can I expect on the hike?

You'll hike through a pleasant, shaded forest of redwoods and tanoaks. The trail features huge boulders, some suitable for beginner rock scrambling, and you might even rock-hop across Bonjetti Creek. Expect singletrack or old doubletrack paths. When accessible, Summit Rock offers stellar views of the Santa Cruz Mountains.

What notable features or landmarks will I see along the route?

A significant feature is Indian Rock, a large sandstone boulder with mini-caves perfect for exploration. You might also spot peregrine falcons soaring overhead, especially outside of their nesting season.

Does the Summit Rock Loop Trail intersect with other paths?

Yes, the route also passes through sections of the Summit Rock Loop Trail, Bay Area Ridge Trail - 04 - San Francisco and Peninsula, Castle Rock Trail, Saratoga Gap Trail, and Skyline Trail.

What wildlife might I encounter on the trail?

The area is known for peregrine falcons, which nest seasonally on Summit Rock. You might also see other local birds and small mammals typical of a redwood and tanoak forest environment.

Are there any cafes or amenities near the trailhead?

Sanborn County Park is a natural area, so amenities directly at the trailhead are limited. For cafes, restaurants, or other services, you would need to drive to nearby towns like Saratoga or Los Gatos.

Is the trail usually crowded?

The Summit Rock Loop Trail is described as a pleasant, shaded loop, and some sections are less used, meaning you are unlikely to encounter many other people, offering a more tranquil hiking experience.

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