Conejo Open Space Challenge

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 towards the bottom of this page, including galleries of photos submitted by participants!

The 13th Annual Challenge runs March 1 – May 31, 2024.

Here are the trails to explore for this year’s Challenge (you can also download as a flyer and the 2024 trail maps). As with last year, we’ve developed route suggestions that include the Challenge trails to help you get to know areas that might be new to you.

To help you find your way, you can download maps to these trails as a PDF document.

There is no fee to participate in the Challenge. If you complete all 10 trails, attend the post-event party (details TBD) to see if you’ve won a prize.

Email your photos or links to GPS tracks to coschallenge@gmail.com to show you’ve completed a segment. If you like, also post your photos on Twitter or Instagram with the tag #coschallenge.

Please follow all posted open space rules and be courteous to other trail users. Please do not use the trails when they are muddy or closed, and stay safe. This is not a race, so take your time and enjoy the experience.

You can support COSCA by making a tax-deductible donation to the Conejo Open Space Foundation (COSF) at cosf.org/donate. COSCA is the agency entrusted with preserving, protecting, and managing the open space resources in the Conejo Valley, including management and maintenance of the trails in this Challenge. Visit conejo-openspace.org or facebook.com/ConejoOpenSpace/ for more information about COSCA.

Participants give their permission for submitted photos to be used by COSCA and COSF on their websites, social media and future promotions.

Updates to Conejo Open Space Challenge activities

The 2024 Conejo Open Space Challenge starts March 1! (2/1/2024) - 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,… See more...
New Conejo Canyons Vehicle Bridge to Open Soon: Videos of the Construction (1/15/2024) - Years in the planning, the new bridge in Hill Canyon is taking just a few months to construct and will be available for hikers, mountain bikers and equestrians to use as well as official vehicles. With the Hill Canyon Pedestrian… See more...
Conejo Open Space Challenge wrap-up and final photo gallery (6/12/2023) - The wrap-up celebration for those Challenge participants, with a prize give-away for those who completed it, was held Friday afternoon June 2. Included in the prizes were $200 of gift cards that were contributed by COSF. One lucky young woman… See more...
Prize Giveaway for Conejo Open Space Challenge finishers on Friday June 2 (5/31/2023) - A celebration and prize giveaway for the people who completed the 2023 Conejo Open Space Challenge  will be held on Friday June 2 at the Lakeside Area of Conejo Creek North at 6 pm. Here's a link to the location… See more...
Only 2 days left to complete the 2023 Open Space Challenge! (5/29/2023) - The Conejo Open Space Challenge ends on May 31 - if you haven't finished it yet, it's time to get serious! Here is the latest gallery of photos submitted by the participants. This time there are 48 photos. There are… See more...
It’s New Map Monday in Lang Ranch: Moderate Lang Ranch Loop (5/23/2023) - Highlights Moderate hike of 4 miles Good for conditioning because the Alapay and Meadow Vista Trails are quite steep Good views of Simi Valley and Lang Ranch Open Space Alapay Trail is one of the segments of the 2023 Conejo… See more...
A gallery of 36 more Open Space Challenge photos before it ends in a few days (5/20/2023) - If you haven't completed The Challenge yet, you have less than 2 weeks before it ends on May 31. If you want to be eligible for some prizes at the June 2 completion celebration, you better get hopping! This is… See more...
May 31 is the last day of the Conejo Open Space Challenge! (5/18/2023) - Now that the trails have (mostly) dried up after this winter's rains, now is a good time to get out and finish The Challenge! The last day is Wednesday May 31, just over two weeks from now. The wildflowers next… See more...

View all the news and updates about the Conejo Open Space Challenge!