Conejo Open Space Foundation
The Conejo Open Space Foundation is dedicated to helping preserve, promote and protect natural open space through community education and involvement. We support these efforts by fundraising and volunteer engagement.
Upcoming Events
The 2025 Conejo Open Space Challenge starts March 1! (2/10/2025) - 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 some trails that may be new to them. See if you can complete all ten trails! If you do, you will be entered into a raffle and could win a prize donated by some awesome sponsors. View updates to the Challenge activities on the Challenge web page, including galleries of… (read more...)
News from COSF (View all the updates.)
First photo gallery from the 2025 Conejo Open Space Challenge (3/15/2025) - 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! (read more...)
POSTPONED: Conejo Spring Trail Work Day (3/4/2025) - Unhappily, COSCA is postponing the Annual Conejo Spring Trail Work Day because of the rain that is forecast for this week. The trail in not expected to dry out enough for travel by Saturday. The work day will be rescheduled, and we'll let you know when the details are available. We'll be working on the center section of Los Robles… (read more...)
It’s New Map Monday: El Cerro Loops in Dos Vientos (3/3/2025) - 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 can see over them to view the mountains in the… (read more...)
It’s New Map Monday: Hill Canyon, Peninsula, Plateau Rim Trails Loop in Conejo Canyons (2/24/2025) - Highlights This is a moderate hike of 5.8 miles with 700' of climbing. You will see all the geographic areas of the region - the grasslands of the Western Plateau, verdant Hawk Canyon and more distant volcanic cliffs and mountains. It's lots of fun on a mountain bike. The Hill Canyon Trail and Peninsula Loop Trail are segments of the… (read more...)
It’s New Map Monday: Scenic Loop to Eagle Point Trail in Wildwood Park (2/17/2025) - Highlights This is a moderate-easy hike of 4.0 miles with 800' of climbing. It goes through some of the most beautiful sections of the park. The Eagle Point Trail is a remote trail that gets few visitors despite the beautiful surroundings. Most of the route is along less frequently used trails so you will be able to enjoy quiet solitude.… (read more...)
It’s New Map Monday: White Sage & Hillcrest Ridge Loop in the Hillcrest Open Space area (2/10/2025) - Highlights Hike of 6.6 Miles, extendable to 8 miles Hillcrest Ridge Trail is a ridgeline trail and is very steep in sections - you'll get a great workout! You can get great views of the neighborhoods and distant mountains in all directions from Hillcrest Ridge. The White Sage Trail is a segment of the 2025 Conejo Open Space Challenge (https://cosf.org/challenge;… (read more...)
Wildlife educator Dana Stangel examines how humans and coyotes can peacefully coexist—see her recorded presentation (2/4/2025) - Dana Stangel, founder and executive director of Teranga Ranch Wildlife, shared her expertise and advice about how to live side by side with our most visible urban canid, the coyote. On January 29, 2025, as COSF’s first 2025 Speaker Series guest, Stangel presented “Coyotes Among Us.” Scroll down to watch the video recording of her presentation. Stangel’s talk focused on… (read more...)
It’s New Map Monday: Autumn Ridge and Meadow Vista Trails in Lang Ranch (2/3/2025) - Highlights Moderate hike of 4.4 miles Good for conditioning because the Autumn Ridge and Meadow Vista Trails are quite steep in places Good views of Simi Valley and Lang Ranch Open Space Includes two of the segments of the 2025 Conejo Open Space Challenge Description This is not a very long hike, but both Autumn Ridge and Meadow Vista Trails… (read more...)
The 2025 Conejo Open Space Challenge starts March 1! (2/10/2025) - 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 some trails that may be new to them. See if you can complete all ten trails! If you do, you will be entered into a raffle and could win a prize donated by some awesome sponsors. View updates to the Challenge activities on the Challenge web page, including galleries of… (read more...) First photo gallery from the 2025 Conejo Open Space Challenge (3/15/2025) - 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! (read more...) POSTPONED: Conejo Spring Trail Work Day (3/4/2025) - Unhappily, COSCA is postponing the Annual Conejo Spring Trail Work Day because of the rain that is forecast for this week. The trail in not expected to dry out enough for travel by Saturday. The work day will be rescheduled, and we'll let you know when the details are available. We'll be working on the center section of Los Robles… (read more...) It’s New Map Monday: El Cerro Loops in Dos Vientos (3/3/2025) - 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 can see over them to view the mountains in the… (read more...) It’s New Map Monday: Hill Canyon, Peninsula, Plateau Rim Trails Loop in Conejo Canyons (2/24/2025) - Highlights This is a moderate hike of 5.8 miles with 700' of climbing. You will see all the geographic areas of the region - the grasslands of the Western Plateau, verdant Hawk Canyon and more distant volcanic cliffs and mountains. It's lots of fun on a mountain bike. The Hill Canyon Trail and Peninsula Loop Trail are segments of the… (read more...) It’s New Map Monday: Scenic Loop to Eagle Point Trail in Wildwood Park (2/17/2025) - Highlights This is a moderate-easy hike of 4.0 miles with 800' of climbing. It goes through some of the most beautiful sections of the park. The Eagle Point Trail is a remote trail that gets few visitors despite the beautiful surroundings. Most of the route is along less frequently used trails so you will be able to enjoy quiet solitude.… (read more...) It’s New Map Monday: White Sage & Hillcrest Ridge Loop in the Hillcrest Open Space area (2/10/2025) - Highlights Hike of 6.6 Miles, extendable to 8 miles Hillcrest Ridge Trail is a ridgeline trail and is very steep in sections - you'll get a great workout! You can get great views of the neighborhoods and distant mountains in all directions from Hillcrest Ridge. The White Sage Trail is a segment of the 2025 Conejo Open Space Challenge (https://cosf.org/challenge;… (read more...) Wildlife educator Dana Stangel examines how humans and coyotes can peacefully coexist—see her recorded presentation (2/4/2025) - Dana Stangel, founder and executive director of Teranga Ranch Wildlife, shared her expertise and advice about how to live side by side with our most visible urban canid, the coyote. On January 29, 2025, as COSF’s first 2025 Speaker Series guest, Stangel presented “Coyotes Among Us.” Scroll down to watch the video recording of her presentation. Stangel’s talk focused on… (read more...) It’s New Map Monday: Autumn Ridge and Meadow Vista Trails in Lang Ranch (2/3/2025) - Highlights Moderate hike of 4.4 miles Good for conditioning because the Autumn Ridge and Meadow Vista Trails are quite steep in places Good views of Simi Valley and Lang Ranch Open Space Includes two of the segments of the 2025 Conejo Open Space Challenge Description This is not a very long hike, but both Autumn Ridge and Meadow Vista Trails… (read more...)Follow us on social media
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