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
      • Wildwood Park History
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    • Activities Overview
    • 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
      • Trail Work Notification Signup
      • COSCA Volunteer Manual
    • Event Signup
    • Conejo Open Space Challenge 2023: March 1 to May 31
    • Speaker Series
    • Native Plantpalooza & Eco Fest
      • 2023 Native Plantpalooza & Eco Fest Exhibitor Information
    • Trail Building and Restoration
    • Trails Education Days for 4th Graders
      • Video Overview
      • Recent Updates for Trails Education Days
      • Trails Education Days Videos
    • “You in the Conejo” monthly photo contest
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    • Scholarships for Environmental Studies
      • How to Apply
      • Scholarships News
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  • Open Space
    • Overview Map & Area Descriptions
    • Explore Conejo Open Space
    • Rules of the Trails
    • Wildflowers & Native Plants
    • Non-Native Plants
      • Puncture Vine
    • Wildlife
    • Videos about Native Plants and Animals
    • 2018 Wildfire Status
  • Trails
    • New Hiking and Riding Trail Route Guides
    • Overview Map & Area Descriptions
    • Hiking Preparedness
    • Trail and Open Space Maps
    • 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
    • Geocaching Along the Open Space Trails
      • Introduction to Geocaching Hike June 1 2019

COSCA

COSCA Trails Trailwork

2023 Conejo Spring Trail Work Day will be Saturday March 18

After all the rain we’ve had since January, our Conejo Valley trails are in dire need! You can help restore them by volunteering for the Conejo Spring Trail Work Day to be held in Wildwood Park on Saturday March 18. Please pre-register online to help us plan for the event, Read more…

By Steve Clark, 7 months03/07/2023 ago
_Special Announcement COSCA Newsletter

COSF’s Winter 2022 Newsletter is here!

The winter edition of our newsletter is now available! In this issue: Meet Your New COSCA Rangers Trail Savvy for New Bikers ‘Where’ Contest Returns as ‘You in the Conejo’ Plus: Spotlight on COSF board member Brendan Callahan How to volunteer and more…

By Anne Russell, 9 months01/11/2023 ago
Sage Publishling volunteers at Conejo Canyons Trailhead Newbury Park, CA with COSF and COSCA
Accomplishments COSCA Trailwork

Sage Publishing Volunteers Clean Up the Conejo Canyons Trailhead

Nine volunteers from Sage Publishing joined COSF board members Anne and Tania and COSCA rangers Joe and Ryan to clean up the Conejo Canyons Trailhead in Newbury Park on October 20. A short walk from Sage’s offices on Conejo Spectrum St., the trailhead was in need of attention not only Read more…

By Anne Russell, 11 months10/30/2022 ago
COSCA Fall Trailwork Day 2022 John Kross Wishbone Trail
_Special Announcement Accomplishments COSCA Trailwork

COSCA Fall Trail Work Day 2022 Fixes Up the Wishbone Trail

An enthusiastic crowd of 55 volunteers turned out early on a cool, overcast morning to work on the Wishbone Trail behind the Westlake Village Community Park on October 15. The trail, which was completed a mere three years ago and is the newest in the Conejo Open Space system, needed Read more…

By Anne Russell, 11 months10/28/2022 ago
_Special Announcement Accomplishments COSCA Trails Trailwork

Conejo Spring Trail Work Day – What a Success!

On Saturday March 19 about 130 volunteers came to help restore the Santa Rosa Trail above Wildwood Mesa to like-new condition! There were enough volunteers that crews also worked on the Teepee, Moonridge and Stagecoach Bluff Trails. The photos in the gallery below are from workers on the Santa Rosa Read more…

By Steve Clark, 2 years03/21/2022 ago
_Special Announcement COSCA Trails

COSCA Announces a Trail Reroute on the Popular Los Robles Trail

The Conejo Open Space Conservation Agency (COSCA) will open a new trail re-route on a portion of the Los Robles Trail within the next week. Final work is being completed to open the new trail and close the section of the old trail that will no longer be used. See Read more…

By Steve Clark, 2 years05/12/2021 ago
COSCA Environment

Thousand Oaks free Chipper Day: April 24

By Steve Clark, 2 years04/21/2021 ago
Conejo OS Challenge COSCA

Announcing the 2021 Conejo Open Space Challenge!

Here’s your chance to explore some of the best trails in the Conejo Open Space that many people are not familiar with! From March 1st through May 31st the Conejo Open Space Conservation Agency (COSCA) is challenging mountain bikers, hikers, trail runners and equestrians of all ages to try out Read more…

By Steve Clark, 3 years02/10/2021 ago
Accomplishments COSCA Environment Wildlife

COSF again contributes to the Conejo Open Space Bird Study

The Conejo Open Space Foundation has provided a further $2000 donation to the Conejo Open Space Conservation Agency (COSCA) in support of an annual bird monitoring program. COSCA contracts with the Western Foundation of Vertebrate Zoology (WFVZ) to carry out these extensive studies. The results are a significant aid for Read more…

By Steve Clark, 3 years09/23/2020 ago
COSCA Safety Trails

All Thousand Oaks trails are closed for the next two days

The Conejo Open Space Conservation Agency has just announced that all Thousand Oaks trails will be closed Sunday and Monday Sept 6-7 due to the extreme heat. Numerous heat-related rescues are tying up critical rescue and fire personnel. Closing COSCA trails will reduce the burden on safety staff and ensure Read more…

By Steve Clark, 3 years09/05/2020 ago

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Native Plantpalooza & Eco Fest
Saturday October 7, 2023

A free, family-friendly outdoor event where the Conejo Valley community learns about native plants, water-wise gardening and more sustainable living. Click to learn more!