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.
Connecting community and nature for more than 30 years!
Upcoming Events
News from COSF (View all the updates.)
Trails of the Conejo Open Space Challenge (6/30/2026) - Today's theme is Trails - photos that participants of the 2026 Conejo Open Space Challenge have submitted that show the trails they're traveling on. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! If you would like to see earlier galleries with different themes, visit the Conejo Open Space Challenge page, and scroll down… (read more...)
Faces of the Conejo Open Space Challenge (portrait edition) (6/29/2026) - Today's topic is Selfies - taken by participants of the 2026 Conejo Open Space Challenge. We hope you enjoy scrolling through them as much as they enjoyed taking them! Selfies that are in landscape orientation were posted last week. If you would like to see earlier galleries with different themes, visit the Conejo Open Space Challenge page, and scroll down… (read more...)
Wildlife of the Conejo Open Space Challenge (6/28/2026) - Our subject today is Wildlife. Here is a gallery of photos submitted by participants of the 2026 Conejo Open Space Challenge. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...) Skies above the Conejo Open Space Challenge participants (6/27/2026) - Today's subject for photos submitted by 2026 Conejo Open Space Challenge participants is Skies - look up! We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...)
Flowers of the Conejo Open Space Challenge (6/26/2026) - Photos submitted by participants of the 2026 Conejo OS Challenge are arranged by subject matter this year, flowers being the current subject. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...)
2026 Summer COSF Newsletter (6/24/2026) - The summer edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Participants of the Conejo Open Space Challenge : The 5th Annual Native Plantpalooza & Eco Fest is returning October 10 : Rattlesnake Safety speaker event summary : COSCA restoring native habitat : Spotlight on Steve Bacharach, COSTAC Chair and Conejo Open Space Challenge coordinator… (read more...)
Faces of the Conejo Open Space Challenge (landscape edition) (6/23/2026) - Photos submitted by participants of the 2026 Conejo OS Challenge will be arranged differently than in the past. Because we weren't able to post photos as they were submitted, we have grouped them by subject matter. This first group is of selfies, and selfie-like images. Because there are so many, they are split by orientation, landscape and portrait. I hope… (read more...)
Spring ‘Four Seasons’ photo contest winner is Marilyn Wells! (6/5/2026) - For our Summer 'Four Seasons' contest the challenge subject is animal tracks in the Conejo open space. Deadline for entry is August 31, 2026. If you would like to enter future contests, here are the rules: Every season, we’ll identify a specific phenomenon or item (e.g., “an oak tree”) for you to find within the Conejo Open Space. As long as… (read more...)
News from COSF (View all the updates.)
Trails of the Conejo Open Space Challenge (6/30/2026) - Today's theme is Trails - photos that participants of the 2026 Conejo Open Space Challenge have submitted that show the trails they're traveling on. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! If you would like to see earlier galleries with different themes, visit the Conejo Open Space Challenge page, and scroll down… (read more...) Faces of the Conejo Open Space Challenge (portrait edition) (6/29/2026) - Today's topic is Selfies - taken by participants of the 2026 Conejo Open Space Challenge. We hope you enjoy scrolling through them as much as they enjoyed taking them! Selfies that are in landscape orientation were posted last week. If you would like to see earlier galleries with different themes, visit the Conejo Open Space Challenge page, and scroll down… (read more...) Wildlife of the Conejo Open Space Challenge (6/28/2026) - Our subject today is Wildlife. Here is a gallery of photos submitted by participants of the 2026 Conejo Open Space Challenge. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...) Skies above the Conejo Open Space Challenge participants (6/27/2026) - Today's subject for photos submitted by 2026 Conejo Open Space Challenge participants is Skies - look up! We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...) Flowers of the Conejo Open Space Challenge (6/26/2026) - Photos submitted by participants of the 2026 Conejo OS Challenge are arranged by subject matter this year, flowers being the current subject. We hope you enjoy scrolling through them as much as the participants enjoyed taking them! (read more...) 2026 Summer COSF Newsletter (6/24/2026) - The summer edition of the Conejo Open Space Foundation newsletter has been posted. In this edition… Participants of the Conejo Open Space Challenge : The 5th Annual Native Plantpalooza & Eco Fest is returning October 10 : Rattlesnake Safety speaker event summary : COSCA restoring native habitat : Spotlight on Steve Bacharach, COSTAC Chair and Conejo Open Space Challenge coordinator… (read more...) Faces of the Conejo Open Space Challenge (landscape edition) (6/23/2026) - Photos submitted by participants of the 2026 Conejo OS Challenge will be arranged differently than in the past. Because we weren't able to post photos as they were submitted, we have grouped them by subject matter. This first group is of selfies, and selfie-like images. Because there are so many, they are split by orientation, landscape and portrait. I hope… (read more...) Spring ‘Four Seasons’ photo contest winner is Marilyn Wells! (6/5/2026) - For our Summer 'Four Seasons' contest the challenge subject is animal tracks in the Conejo open space. Deadline for entry is August 31, 2026. If you would like to enter future contests, here are the rules: Every season, we’ll identify a specific phenomenon or item (e.g., “an oak tree”) for you to find within the Conejo Open Space. As long as… (read more...)Follow us on social media
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