Conejo Open Space Foundation
  • About Us
    • Our Story…
      • Our Story
      • Board of Directors
      • Accomplishments
    • History…
      • History of the Conejo Open Space
      • Historic Conejo Open Space Promotional Videos
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    • What are these: COSCA, COSTAC, COSF, CRPD…
    • Privacy Policy as of 2019-06-04
  • Support Us!
    • Overview
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  • Get Involved
    • Open Space Programs
    • Event Signup
    • Volunteer!
    • Conejo Open Space Challenge 2025: March 1 to May 31
    • Speaker Series
    • Native Plantpalooza & Eco Fest for 2025
    • Trail Building and Restoration
    • Trails Education Days for 4th Graders
      • Video Overview
      • Recent Updates for Trails Education Days
      • Trails Education Days Videos
    • “Four Seasons” photo contest
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    • Scholarships for Environmental Studies
      • How to Apply
      • Scholarships News
  • Volunteering
    • Volunteering Overview
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    • Volunteer Report Forms
      • Adopt-A-Trail Report Form
      • Bike Bell Report Form
      • Trail Ambassadors Report
      • Trail Watch Report
      • Log your Trail Work Events
    • Trail Work Notification Signup
    • COSCA Volunteer Manual
  • News
    • Latest News
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  • Explore Open Spaces
    • Open Space Trails and Maps
      • Map Overview
      • Compact PDF Trail Route Guides
      • Conejo Canyons Open Space (Western Plateau)
      • Dos Vientos and Rancho Potrero Open Spaces
      • Lang Ranch, Woodridge and Oakbrook Regional Park
      • Los Robles Open Space area
      • Wildwood Park
      • Other Trails including North Ranch
      • List of Maps
    • Things to do and see
      • Open Space Activities
      • Native Plants
      • Non-Native Plants
      • Wildlife
      • Flora and Fauna Videos
    • Be Prepared
    • Rules of the Trails

Conejo OS Challenge

_Special Announcement Conejo OS Challenge Social Media ONLY

It’s New Map Monday: Hidden Meadow and Little Sandstone Trails in Oakbrook Open Space

Highlights Little Sandstone Trail passes through what could be some of the most beautiful sandstone rock formations in the county The “Mini Tripeaks” on Little Sandstone Trail is a great place to explore the rock formations, and to stop for a snack or lunch Hidden Meadow Trail is really fun Read more

By Steve Clark, 2 hours01/05/2026 ago
_Special Announcement Conejo OS Challenge Social Media ONLY

It’s New Map Monday: Oakbrook Vista & Hidden Meadow Trails

Highlights  Oakbrook Vista Trail quickly gains elevation to give a good view over Oakbrook Regional Park and Lang Ranch Open Space to the north. You’ll get a great view of Albertson Motorway as it winds it’s way up the hills. Hidden Meadow Trail is really fun on a mountain bike Read more

By Steve Clark, 2 weeks12/22/2025 ago
_Special Announcement Conejo OS Challenge Social Media ONLY

It’s New Map Monday: Brookview Loop in Los Robles East

Highlights Brookview Trail runs mostly along a ridgeline so you get great views to the south over Lake Sherwood and north over Thousand Oaks. Brookview and White Horse Canyon Trails are quite remote and rugged, so they are great for getting away from the crowds. Brookview Trail is a segment Read more

By Steve Clark, 3 weeks12/15/2025 ago
_Special Announcement Conejo OS Challenge Social Media ONLY

It’s New Map Monday: Vista Del Mar Loop in Dos Vientos

Highlights This route is 4.9 miles long with about 800′ of ascent. The Twin Ponds, roughly half way along Vista Del Mar Trail. If there was a substantial amount of rain the preceding winter, there will be waterfowl in the ponds. The view is constantly changing on these hilly trails, Read more

By Steve Clark, 1 month12/01/2025 ago
_Special Announcement Conejo OS Challenge

The 2025 Conejo Open Space Challenge ends on May 31!

There are only a few days left until The Challenge ends this Saturday! That means there’s still time to check out two or three trails if you’re almost finished, or to cram in all ten if you haven’t started. Here are some more great photos submitted by the participants. Over Read more

By Steve Clark, 7 months05/28/2025 ago
_Special Announcement Conejo OS Challenge

You have just 3 weeks to complete the Conejo Open Space Challenge for 2025!

The COS Challenge ends on May 31, a date that is rapidly approaching! Already several dozen people have completed all ten trails. If you would like to qualify for some of the fabulous prizes supplied by the Conejo Open Space Foundation, and Giant Bikes, at the final celebration on June Read more

By Steve Clark, 8 months05/09/2025 ago
_Special Announcement Conejo OS Challenge

Third photo gallery from the 2025 Conejo Open Space Challenge

There are 5 weeks left in the 2025 Conejo Open Space Challenge. That’s plenty of time to get out and explore the 10 Challenge trails, even if you haven’t started yet. The great photos are continuing to roll in! Here are some more of them. If you would like to Read more

By Steve Clark, 9 months04/23/2025 ago
_Special Announcement Conejo OS Challenge

Another photo gallery from the 2025 Conejo Open Space Challenge

We’re now exactly half way through the 2025 Challenge! Here are some more great photos submitted by the enthusiastic participants. If you would like to join the fun, check out the details on our Conejo Open Space Challenge page!

By Steve Clark, 9 months ago
_Special Announcement Conejo OS Challenge

First photo gallery from the 2025 Conejo Open Space Challenge

We’re only two weeks into the 2025 Challenge and participants have already submitted dozens of great photos! Here are some of them. If you would like to join the fun, check out the details on our Conejo Open Space Challenge page!

By Steve Clark, 10 months03/15/2025 ago
_Special Announcement Conejo OS Challenge Social Media ONLY

It’s New Map Monday: El Cerro Loops in Dos Vientos

Highlights Two routes are described here, an easy one of 2.3 miles with roughly 300′ of climbing, and a longer one of 4.1 miles with roughly 700′ of climbing For Dos Vientos residents, there are several nearby trailheads for easy access The trails climb up above the neighborhoods so you Read more

By Steve Clark, 10 months ago

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