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WELCOME!

  • Shell Ridge Open Space

  • California Poppies in the Spring

  • Open Space Bluebird family

  • The elusive bobcat!

  • Volunteers have all the fun!

  • Open Space bush rabbit

  • Mount Diablo Sunflower in Lime Ridge

  • Indian Valley in Shell Ridge

  • 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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Foundation seeking new Volunteer Coordinator

2015 Spring Newsletter Now Available!

Updated Weekend Schedule Announced through April 2015

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Every Tuesday Morning - 9am to 12pm - WCOSF Tuesday Group meets to complete various activities in the Open Spaces

Saturday March 28 - 9am to 12pm - Sutherland Entrance Restoration in Shell Ridge

Saturday April 4 - 9am to 12pm - Indian Valley Pond in Shell Ridge

Saturday April 4 - 9am to 12pm - Wildflower Walk in Acalanes (Sousa Entrance)

Saturday April 11 - 9am to 12pm - Sutherland Entrance Restoration in Shell Ridge

Monday April 13 - 9am to 12pm - Monthly Nursery Group at the Native Plant Nursery