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
Giving Tuesday is today, November 28. Your gift benefits our open space. (11/28/2023) - The Conejo Open Space Foundation (COSF) is unique because we are the only local non-profit organization that raises funds strictly for open space projects and programs. Founded in 2012, Giving Tuesday—observed on the Tuesday after Thanksgiving and the 4 days that follow—celebrates the spirit of philanthropy and charity. As in the past, we invite you to help support your open spaces by making a gift of any size to the Conejo Open Space Foundation today. As an example of our activities, we partner with the Conejo Open Space Conservations Agency (COSCA) to organize and stage the Trail Education Days program… (read more...)
News from COSF (View all the updates.)

You can score a TeamConejo T-shirt! (11/12/2023) - The Conejo Open Space Foundation will give you a swank TeamConejo T-shirt when you participate in three COSCA trail work events! We're doing this to recognize and reward our regular volunteers. To get yours, all you need to do is let us know which events you participate in and we'll give you a shirt on or after your third event.… (read more...)
CANCELLED: November 18 is the next Monthly Trail Work Day (11/4/2023) - The November trail work day is cancelled because of the weather. Watch for an announcement of the December work day. The work will be on the Stagecoach Bluff Trail in Wildwood Regional Park, fixing ruts. Monthly work days are organized by the Conejo Open Space Conservation Agency (COSCA), with support from COSF. Meet at the main Wildwood Parking area at… (read more...)
The great volunteer turnout made for a successful 2023 Fall Trail Work Day on Saturday – Summary and photo gallery (10/23/2023) - Well over 100 people helped fix up three trails in Wildwood Park on October 21, with 89 volunteers plus COSCA rangers and several members of the Conejo Youth Conservation Corps (CYCC). Participants split into several group and spread out to fix ruts, cut back encroaching vegetation, including cactus, clean out old drains and even build some new drains! Three groups… (read more...)
An animal handler holds a large Eurasian eagle-owl. Native Plantpalooza & Eco Fest Stages a Successful Return October 7; See the gallery of photos! (10/11/2023) - Last year, COSF launched a live event as part of its popular Speaker Series: Native Plantpalooza & Eco Fest. This year Native Plantpalooza returned to Conejo Creek North Park on Saturday, October 7, an unusually warm day. Nonetheless, the free event, which featured beekeepers, butterfly experts, climate activists and other exhibitors with a commitment to the environment, drew a crowd… (read more...)
It’s New Map Monday in Wildwood Park: Two Springs, Paradise Falls and Wildwood Canyon Trails (10/2/2023) - Highlights Enjoy the beauty and tranquility of Wildwood Canyon without the crowds or dusty parking Easy short loop along park walkways and pretty canyon trails Two Springs Trail is closed to mountain bikers and equestrians because of stairs Includes two tunnels that pass underneath Avenida de los Arboles Everybody likes to visit Paradise Falls! Description This is an easy 3.2… (read more...)
NPLD trail work at Rancho Potrero: What a success! (9/24/2023) - For National Public Lands Day on Sept. 23, about 40 people turned out to help clear weeds and invasive plants from the amphitheater and picnic area. This is where the old Olympia Farms was situated before COSCA created the Ranch Potrero Open Space Area. Some volunteers removed weeds from the amphitheater and picnic areas while other cut down fennel stalks… (read more...)
2023 Fall COSF Newsletter (9/19/2023) - The fall edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Native Plantpalooza & Eco Fest Returns Oct. 7 : Next monthly COSCA trail work day will be September 23 : Ranger Luis Jimenez Joins COSCA Team : Spotlight on John Noble : and more... View our Fall Conejo Open Space Newsletter. (read more...)
It’s New Map Monday in Wildwood Park: Lizard Rock, Paradise Falls and Two Springs Loop (9/18/2023) - Highlights View of Wildwood Mesa, Elliott Mountain, Hawk Canyon and the Western Plateau from Lizard Rock Rugged volcanic rock on Stagecoach Bluff. The trail is a real challenge for mountain bikers; many use the much easier Mesa Trail instead Everybody loves to visit Paradise Falls Description This is a moderate 4.8 mile round trip route, with a total elevation gain/loss… (read more...)

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