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
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. The very rugged Little Sandstone Trail passes through what could Read more
For our Winter ‘Four Seasons’ contest the challenge subject is Conejo Valley wildlife (i.e., birds, reptiles, bugs, mammals, etc.). Deadline for entry is February 28, 2026. If you would like to enter future contests, here are the rules: Every season, we’ll identify a specific item (e.g., “an oak tree”) for Read more
On November 19, Jaclyn DeSantis, education program manager at the Ojai Raptor Center presented “Wild Neighbors: Raptors, Rehabilitation, and the Human Connection” as the final talk of 2025 in COSF’s popular Speaker Series. DeSantis is a licensed wildlife rehabilitator and she has seen a lot of injured birds during her 15 years Read more
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
Highlights This short out-and-back hike 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. In spring, the trail is lined with blooming purple Read more
CANCELED due to the weather: November 22 Trail Work. The following text is from the original announcement. Join the COSCA rangers and other enthusiastic volunteers on November 22 to help fix up the Park View Trail above Dos Vientos Community Park! If you’re looking for for some ways to get Read more
Highlights This route is 8.0 miles long with about 1300′ of elevation gain. There will be waterfowl in the Twin Ponds if there was a enough rain during the preceding winter to keep the ponds from drying up. The view is constantly changing on these hilly trails, overlooking Dos Vientos Read more
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