The fall edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Announcing Plantpalooza 2025 – October 11 : New COSCA ranger Will Haver : Summary of speaker event “Lions and fires and humans, Oh deer!” : Focus on Robin Bertolucci, our newest board member : Read more
Congratulations are due once again to Mike Moessl, who submitted this photo of a sunrise seen from the Lang Ranch Open Space for our Summer “Four Seasons” photo contest. Mike also won the Spring wildflower challenge with his photo of woolly blue curls. For Autumn ‘Four Seasons’ contest our challenge subject is Read more
Wildlife ecologist Ellie Bolas shared discoveries from ongoing research, conducted in partnership with the National Park Service, about mule deer in the Santa Monica Mountains and Conejo Valley as COSF’s third Speaker Series presentation of 2025 on July 9. Bolas’ focus is on the impact of human-caused disturbance to the Read more
Congratulation to Mike Moessl, who submitted this photo of woolly blue curls that he took in the Lang Ranch Open Space! Photo challenge for the Summer “Four Seasons” contest is sunrises and sunsets as seen from the Conejo Open Spaces. If you would like to enter future contests, here are Read more
The summer edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Grade 4 Trails Education Days summary and essay contest winners : Conejo Open Space Challenge wrap-up : Beware the goldspotted oak borer : Newest COSF board member Jessica Minucci : Spring photo contest winner Read more
Isabella Lee is COSF’s new 2025 Environmental Studies scholar. Isabella, who graduated from Thousand Oaks High School, replaces Greceldy Hau as the recipient of one of COSF’s two scholarship awards because Greceldy will be pursuing a college major other than environmental studies. Isabella says that her determination to work toward Read more
The 2025 Trails Education Days provided lessons on open space for 1,080 Conejo 4th grade students from all 17 CVUSD elementary schools during the week of April 28. Writing Contest The students who participate in Trails Education Days are invited to enter a letter-writing contest to describe some of the things they Read more
Please join us for the live online presentation of “Lions and Fires and Humans, Oh Deer!” by ecologist Ellie Bolas. Currently a PhD candidate at the University of California Davis (UCD), Bolas will discuss how mule deer in the Santa Monica Mountains and Conejo Valley navigate a dynamic landscape of Read more
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
On May 2, an enthusiastic team of 15 Amgen staffers joined COSCA Rangers Joe and Kari and COSF President Bill Miller and board member Anne Russell for a morning clean-up at the Arroyo Conejo. The video of the work can be seen below. The Amgen group removed about one ton Read more
