MTB Project Logo
Climb
MTB
Hike
Trailrun
Ski
Limited Time70% OffonX Backcountry

Chumash Trail

Difficult Difficult
 4.3 (17)
  1. Areas
  2. CA
  3. …Los Angeles
  4. …Simi Valley
  5. Marr Ranch Open Space
Explore MTB in 3D
Use onX Backcountry to explore the terrain in 3D, view recent satellite imagery, and more. Now available in onX Backcountry Mobile apps! For more information see this post.
Previous Next

“Arguably the best All-Mountain trail in Simi Valley. ”

Tim Condit
Your Rating: Rating Rating Rating Rating Rating      Clear Rating
Your Difficulty:
Your Favorites: Add To-Do · Your List

2.5

Miles

4.1

KM
Singletrack

2,430' 741 m

High

1,357' 414 m

Low

20' 6 m

Up

1,094' 333 m

Down

8%

Avg Grade (5°)

22%

Max Grade (12°)

Dogs Unknown

E-Bikes Unknown

Description

This is a local favorite. It's a tough 2.5 mile climb that has many tricky technical sections (loose rocks, boulders, a few tight switchbacks). It will surely challenge a wide range of riders, and it has some fast flowy downhill as well.

Contacts

Local Club: Concerned Off-Road Bicyclists Association - CORBA

Land Manager: Rancho Simi Recreation and Park District

Shared By:

Tim Condit
Full Details

Trail Ratings

  4.3 from 17 votes

#1

in Marr Ranch Open Space

#1824

Overall
  4.3 from 17 votes
5 Star
35%
4 Star
59%
3 Star
6%
2 Star
0%
1 Star
0%
Trail Rankings

#1

in Marr Ranch Open Space

#146

in California

#1,824

Overall
30 Views Last Month
1,903 Since Jan 2, 2014
Difficult Difficult
0%
0%
17%
8%
75%
0%
Add a Photo

Photos

One of the tougher sections that may require a dismount.
Jan 1, 2014 near Santa S…, CA
Dawn light on the ridge above Chumash. Trail is steep but relatively smooth in the first mile.
Nov 15, 2022 near Santa S…, CA
Morning light, looking down on the first mile of the Chumash Trail coming up from Simi Valley.
Nov 15, 2022 near Santa S…, CA
Looking back down Chumash from the junction with Rocky Peak Trail (crossing in the foreground). A perfect cross-country / down-country descent with technical rocky outcroppings and smooth but often narrow singletrack all the way to the bottom.
Nov 15, 2022 near Santa S…, CA
Looking up the last rock wall before the junction at Rocky Peak Trail (which you can see in the upper left). One of the hardest sections to clean, and a good challenge coming back down, too.
Nov 15, 2022 near Santa S…, CA
Looking up into the last couple hundred yards before the junction with Rocky Peak Trail. This last stretch offers half a dozen small rocky sections, a couple are deceptively tricky. Good challenge, great fun!
Nov 15, 2022 near Santa S…, CA

3 Comments

Sort by: Oldest Drop down
Newest Oldest Popular
loading

Weather

Current Trail Conditions

All Clear 56 days ago
Add Your Check-In

Check-Ins

Mar 20, 2025
C T
Apr 20, 2018
TJ U
May 28, 2017
Anthony Pieroni
2.5mi
Jan 19, 2015
John Logan
Mostly (70%) smooth single track. A few sketchy sections covered by treacherous golf ball sized rocks. IMO, the last 3/4 mile towards the top is ... — 1h 30m

Nearby Recommended Routes

Welcome

Join the Community! It's FREE

Already have an account? Login to close this notice.

Get Started