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Routes
Mountain biking trails
United States
California
Ventura County
Simi Valley

Chumash and Las Llajas Canyon Loop

Moderate

5.0

(4894)

12,169

riders

Chumash and Las Llajas Canyon Loop

01:41

15.0km

480m

Mountain biking

The Chumash and Las Llajas Canyon Loop is a moderate mountain biking route covering 9.3 miles (15.0 km) in Rocky Peak Park. You will gain 1563 feet (476 metres) in elevation, with an estimated duration of 1 hour and 41 minutes. This loop offers a diverse and challenging experience for…

Last updated: March 7, 2026

Tips

Your route passes through protected areas

Please check local regulations for:

Marr Ranch Open Space

Rocky Peak Park

Waypoints

A

Start point

Get Directions

1

6.11 km

Las Llajas Canyon Trail

Highlight (Segment) • Trail

This trail is very well maintained and features a slight incline throughout its entire length. Numerous fantastic vantage points offer panoramic views of the area, and you can even catch sight of the river running through the canyon.

Tip by

2

12.5 km

Chumash Trail

Highlight • Trail

A great climb that never gets boring: Loose rocks, boulders and some tight switchbacks will keep you on your toes.

Tip by

B

15.0 km

End point

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Way Types & Surfaces

Way Types

13.3 km

785 m

596 m

305 m

Surfaces

13.9 km

785 m

250 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 (780 m)

Lowest point (400 m)

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Weather

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Monday 18 May

27°C

11°C

-- %

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This route was planned by komoot.

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Frequently Asked Questions

What is the difficulty level and terrain like on the Chumash and Las Llajas Canyon Loop?

This loop is generally rated as moderate to challenging, suitable for intermediate to experienced mountain bikers. It offers a diverse terrain, starting with the Las Llajas Canyon Trail, which is primarily a fire road with a steady uphill climb. This section can be sandy and loose in spots. The Chumash Trail, in contrast, features technical singletrack with rocky areas, loose rocks, and some tight switchbacks, especially during the tough 2.5-mile climb. The downhill portion of Chumash is fast and flowy, though still mildly technical.

What's the best way to ride the Chumash and Las Llajas Canyon Loop?

For the most rewarding experience, it's highly recommended to ride the loop counter-clockwise. This means you'll climb the steady fire road of the Las Llajas Canyon Trail and then enjoy the fast, technical descent of the Chumash Trail.

Where can I park to access the Chumash and Las Llajas Canyon Loop?

You can typically find parking at the Chumash Natural Park trailhead or near the Las Llajas trailhead, often accessed from Evening Sky Drive. These are common starting points for the loop.

Is the Chumash and Las Llajas Canyon Loop dog-friendly?

Yes, dogs are generally allowed on the trail. However, it's important to keep them on a leash at all times to ensure their safety and the comfort of other trail users and wildlife.

What is the best time of year to mountain bike this loop?

Spring is often considered the best time to visit due to pleasant temperatures and the abundance of wildflowers. Fall and winter are also good options. Summers can be very hot, so if you plan to ride then, it's best to start early in the morning to avoid the heat.

Are there any permits or entrance fees required for this trail or Rocky Peak Park?

No, there are generally no specific permits or entrance fees required to access the Chumash and Las Llajas Canyon Loop or for riding within Rocky Peak Park. However, always check local regulations before your visit, as conditions can change.

What kind of views and natural features can I expect on the trail?

You'll be treated to spectacular panoramic views throughout the loop, especially from higher elevations like "Fossil Point" near the Rocky Peak Fire Road. From these vantage points, you can see Simi Valley, the San Fernando Valley, and even the distant Channel Islands. The terrain features impressive sandstone formations, oak savannas, and wildflowers in spring. Keep an eye out for visible fossil shells, hinting at the area's ancient past.

Does the trail intersect other well-known paths?

Yes, the route incorporates sections of several official trails. You'll spend a significant portion on the Las Llajas Canyon Trail and the Chumash Trail. The loop also passes through parts of the Rocky Peak Trail and the Marr Ranch Trail.

Is this trail suitable for beginner mountain bikers?

While the Las Llajas Canyon Trail portion is a relatively easy fire road climb, the Chumash Trail section involves technical singletrack with rocky areas and tight switchbacks. This makes the overall loop more suitable for intermediate to experienced riders rather than absolute beginners.

What should I bring for a mountain bike ride on this loop?

Given the moderate to challenging nature and potential for hot weather, it's essential to bring plenty of water, especially since there's no water available on the trail itself. Also, carry basic bike repair tools, snacks, sun protection (sunscreen, hat), and wear appropriate mountain biking gear including a helmet.

Are there any unique geological features to look out for?

Absolutely! Near "Fossil Point" along the route, you can find visible fossil shells embedded in the sandstone formations. This is a unique geological feature that reminds riders of the area's ancient history as an ocean floor.

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