Open Space Background


  • Shell Ridge Open Space

  • Acorn Woodpecker in Shell Ridge

  • Open Space Bluebird family

  • The elusive bobcat!

  • Volunteers have all the fun!

  • Open Space bush rabbit

  • Mount Diablo Sunflower in Lime Ridge

  • California Poppies in the Spring

  • Monarch Butterfly

  • Quail in the Open Space

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...

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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

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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