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WELCOME!

  • 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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Check out our new Fossil Hill Restoration Photo Album!

Join Our Meetup Group!

2016 Spring/Summer Newsletter Now Available

Updated Weekend Schedule Announced through June 2017

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

Saturday March 25 - 9am to 12pm - Sutherland Entrance Restoration in Shell Ridge

Saturday April 8 - 9am to 12pm - Sutherland Entrance Restoration in Shell Ridge

Monday April 10 - 9am to 12pm - Monthly Nursery Group at the Native Plant Nursery

Saturday April 22 - 9am to 12pm - Sutherland Entrance Restoration in Shell Ridge

SPECIAL EVENT: Saturday April 15 - 9am to 12pm - Shell Ridge Hike with Bob Simmons
Join Bob Simmons, former Open Space Foundation President and former Mayor of the City of Walnut Creek, on a fun and informational hike in Shell Ridge on April 15. This hike will provide information on the natural resources of Shell Ridge, the history of the Open Space and the Foundation, the active restoration areas being worked by the Foundation, and some spring wildflowers. This approximately 3 mile hike through the western Shell Ridge Open Space will visit three active Foundation-led habitat restoration sites in Shell Ridge.