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Hiking trails & Routes
United States
California
Contra Costa County

Carr Ranch Loop and Rocky Ridge Trail

Hard

5.0

(6925)

13,040

hikers

Carr Ranch Loop and Rocky Ridge Trail

05:18

15.9km

820m

Hiking

If you're looking for a challenging hike, the Carr Ranch Loop and Rocky Ridge Trail delivers a strenuous workout across 9.9 miles (15.9 km). You'll ascend a significant 2704 feet (824 metres), requiring about 5 hours and 17 minutes to complete this difficult route. The trail winds through varied terrain,…

Last updated: April 23, 2026

Tips

Temporary access restrictions

Includes segments with temporary access restrictions. Check ahead to confirm restricted segments are open to the public.

After 1.72 km for 12.8 km

After 14.8 km for 1.10 km

Waypoints

A

Bollinger Canyon Trailhead

Highlight • Trail

This trailhead is an excellent staging area centrally located within the Park, making it a great starting or resting point for multiple hike variations. There is plenty of parking, restrooms …

Tip by

1

1.55 km

Rock 2 (622m) - Las Trampas

Highlight • Summit

Rock 2 is a hill of 622m altitude providing great views across the Diablo Range ( komoot.de/tour/7308564 ) from its North-West corner of the Las Trampas Regional Wilderness, which offers …

Tip by

7.78 km

Carr Ranch Preserve

Nature Reserve

3

13.5 km

"Rock 2" Radio Tower

Highlight • Summit

This place was once designated SF-25C, home to a Nike surface-to-air guided missile system during the Cold War. The peak is called "Rock 2" Elevation 2024. The body of water …

Tip by

4

14.6 km

Near the highest point on the ridge, this might have the best view. Sycamore trail down to Devil's Hole is a very steep descent. Staying along Ridge View Trail maintains a more gradual level and, well, great Ridge views.

Tip by

B

15.9 km

End point

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Way Types & Surfaces

Way Types

14.2 km

898 m

818 m

Surfaces

10.9 km

4.15 km

869 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 (600 m)

Lowest point (200 m)

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Weather

Powered by Foreca

Wednesday 8 July

25°C

11°C

0 %

Additional weather tips

Max wind speed: 14.0 km/h

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Frequently Asked Questions

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

The best time to experience the Carr Ranch Loop and Rocky Ridge Trail is typically in winter or spring. During these seasons, you'll find abundant wildflowers, including wild radish and poppies, and avoid the muddy conditions of the wet season or the dusty, worn-out trails of late summer.

Do I need a permit to hike the Carr Ranch Loop and Rocky Ridge Trail?

Yes, an EBMUD (East Bay Municipal Utility District) trail permit is required to hike this route, as it crosses EBMUD land. Make sure to obtain one before your visit.

Where is the trailhead and what are the parking options?

The trailhead for the Carr Ranch Loop and Rocky Ridge Trail is located at Rancho Laguna Park in Moraga. Parking is available at the park.

What kind of terrain should I expect on this hike?

The trail features a highly varied and challenging terrain. You'll encounter a short hill climb at the start, traverse along a creek, and ascend through forests of coast live oak and bay laurel trees. The path then opens up into high meadows and rolling ridgelines, offering both shaded woodland and riparian zones, particularly along Buckhorn Creek. Be prepared for stiff uphill climbs and steep descents. While parts are wide, well-maintained dirt roads, sections can be dusty, rough, and may contain cow manure due to grazing.

What can I see along the route?

This trail offers magnificent vistas and panoramic 360-degree views from the ridge, encompassing the Diablo Range, Carquinez Strait, and San Francisco Bay. Notable points include Bollinger Canyon Trailhead, Rock 2 (622m) - Las Trampas, the "Rock 2" Radio Tower, and the Ridge View - Sycamore Trail Junction. You'll also enjoy serene riparian woodlands and open views of Rocky Ridge at Las Trampas and the San Ramon Valley.

Is the Carr Ranch Loop and Rocky Ridge Trail dog-friendly?

The trail is located within Las Trampas Regional Wilderness, which generally allows dogs on leash. However, specific regulations for the EBMUD land portion where a permit is required may apply. Always check the latest rules for both the park and EBMUD lands before bringing your dog.

What wildlife might I encounter?

You might encounter various wildlife, including dusky-footed woodrats, frogs, and California newts. It's also common to see cows on the trail, as grazing helps reduce fire hazards in the area.

Does this trail intersect with other paths?

Yes, the route incorporates sections of several official trails. You'll hike along parts of the Rocky Ridge Loop Trail, the Carr Ranch Loop Trail, and the Rocky Ridge Trail.

How difficult is this hike?

This trail is rated as difficult and strenuous. It's known for an unusual amount of climbing and several very steep sections, making it best suited for rugged adventurers looking for a challenging workout.

Are there any amenities or services available at Rancho Laguna Park?

Rancho Laguna Park, where the trailhead is located, offers basic park amenities. For specific details on facilities like restrooms or picnic areas, it's best to check the park's official website.

What are the regulations for Las Trampas Regional Wilderness?

Las Trampas Regional Wilderness has specific regulations regarding trail use, permits, and activities. While the EBMUD permit is crucial for this specific route, general park rules for Las Trampas, such as leash laws for dogs and restrictions on certain activities, should also be observed. Always consult the East Bay Regional Park District website for the most current information.

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