WELCOME!
The Walnut Creek Open Space Foundation works to preserve and enhance Walnut Creek's 2700 acres of open space and to educate area residents so that they can enjoy this wonderful resource. Learn more...
WCOS Open again!
Join Our Meetup Group!
Three New Photo Galleries - Deer Lake, Shell Ridge, and N Lime Ridge
New Open Space Guide Available - Fond Memories
2018 Community Trail Survey Results
2008 Open Space Vision Report Appendix
Every Tuesday Morning - 9am to 12pm - WCOSF Tuesday Group meets to complete various activities in the Open Spaces
Every Saturday Morning (Dedicated Group Only) - 9am to 12pm - Fossil Hill Restoration in Shell Ridge
Second Monday of the Month - 9am to 12pm - Monthly Nursery Group at the Native Plant Nursery
Every Wednesday Morning - 9am to 12pm - Wildlife Habitat Restoration Group in North Lime Ridge