WELCOME!
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Shell Ridge Open Space
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Acorn Woodpecker in Shell Ridge
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Open Space Bluebird family
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The elusive bobcat!
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Volunteers have all the fun!
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Open Space bush rabbit
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Mount Diablo Sunflower in Lime Ridge
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California Poppies in the Spring
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Monarch Butterfly
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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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Greetings to all of our members, donors, and volunteers and best wishes to you for the Holiday Season!
Walnut Creek Open Space Foundation 2024 Trails Survey
Available now!
Click here to take the survey: WCOSF 2024 Trails Survey
Join Our Meetup Group!
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