Conejo Open Space Foundation

Approximately one third of the area of Thousand Oaks, in California's Conejo Valley, has been designated as permanent open space. This provides room for native plants and animals to thrive, and vast areas for open space enthusiasts to enjoy. 

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Our COSCA Volunteer Corps has many ways for you to help maintain and preserve the open space that surrounds our beautiful Conejo Valley. By joining with other residents of Thousand Oaks, we can make sure that the trails, canyons, and ridge lines will be here for future generations.

Interested in volunteering in the open space? 

Volunteer Program Summaries

  • Adopt-A-Trail - Maintenance and improvements by individuals or groups of their "adopted" trails
  • Community Outreach - Volunteers providing open space trail maps, literature and information to the public
  • Resource Stewardship - Volunteer participation in a variety of natural resource-related open space projects
  • Trails Education Days - Annual open space education program for CVUSD 4th grade students
  • Trail Patrol - Hiker, mountain biker or equestrian uniformed patrols of open space areas
  • Trail Watch - Informal trail monitoring and maintenance
  • Trail Work Day - Community-wide trail maintenance event held in March and October


The Conejo Open Space Foundation raises funds for many outdoor projects, such as the bridge crossing in Hill Canyon, Bike Bells, Resource Management, and Trails Education Days. Support our efforts in the Conejo open space by becoming a member or making a one time donation.

Interested in supporting the open space?