This year volunteers will be meeting at the inner parking lot at Wildwood Park to help repair damage to the Santa Rosa Trail. 7:30 am: Meet at the inner (lower) lot for check-in at the registration table, complete a release form and pick up some snacks. 8:00 am: Trailwork begins Read more
Even though there is no charge for this event, we have reached the capacity of the room so we are marking it as “Sold Out.” Join us for the kick-off to the COSF Speaker Series for 2020! In the early 20th century, the Conejo Valley and adjacent locations were quiet, Read more
Many of us love shopping! Now, you can take that purchase even further, if you are shopping on Amazon. You have the option to support a charity like ours. For any eligible purchases made, the AmazonSmile Foundation will donate 0.5% of the price to the Conejo Open Space Foundation at no Read more
We hope that our “Where in the Conejo” contest inspires open space enthusiasts like you to find new places in our beautiful open space areas that you wouldn’t have otherwise known about. And you could win a $25 gift certificate! Can you identify the trail portion shown in the photo? Read more
The photo in the December 12th issue of the Thousand Oaks Acorn, shown here, was of the Santa Rosa Trail where it drops from Mount Clef Ridge down onto Wildwood Mesa. Congratulations to Susan Cooley who provided the correct answer and was selected as the winner. Thanks to all who Read more
Update on March 28, 2020: Due to the closing of all trails in the Conejo Valley today, the Open Space Challenge is suspended. Once the trails are open again, the Challenge will continue with the end date pushed out to July 31st. This plan is subject to change as conditions Read more
The Conejo Open Space Conservation Agency, COSCA, starts off the new year of 2020 with a brand new logo, shown to the right. The earlier one, below, dated to the time that COSCA was created in 1977. It has served well over the years, but the new one is certainly Read more
We found these old (and we mean – ancient!) videos kicking around. They’re so old that nobody remembers anything about them. Don’t try calling the on-screen phone number – we don’t know who it belongs to, if anyone. You can view these videos on our Historic Promotional Videos page.
$35,000 donation raised for the first Hill Canyon Bridge construction Donated $2,500 for the Liberty Canyon-US 101 Wildlife crossing Fund and support Trails Education Days – 25 Years, 40,000+ CVUSD students Pledged $30,000 for building the new Hill Canyon Bridge Secure grants to support Trail Education Days, Trail Work Days, Read more
Happy Holidays : Trail Trivia – Shooting Star Trail : Holiday Party and COSF donation to New Hill Canyon Bridge : Spotlight on Christina Robertson : Free Hikes : Tarantula Hill : Old Hill Canyon Bridge restored : Non-native Plants : Rodenticides : Volunteer : and more! View the full Read more