Open Space

Walnut Creek Open Space is open during COVID-19 

Walnut Creek Open Space remains open for hiking, walking, running, bicycling, dog walking, and equestrian use while practicing proper social distancing. 

Picnic areas are now open and picnics will be allowed in accordance with County regulations. Gatherings and all other activities not listed above are prohibited.

For more information on the Stay Home Order see the Stay Home FAQ or call the Contra Costa Health Services Call center at (844) 729-8410 between 8:00 am - 5:00 pm. Please visit Contra Costa Health Services for the latest updates.  Additional City of Walnut Creek updates are available here.


The City of Walnut Creek Open Space division manages over 3000 acres of Open Space in four unique areas and over seven miles of neighborhood trails. These areas have been set aside to preserve natural resources, protect wildlife habitat and corridors, and provide recreation opportunities.

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1226 acres
25 miles of trails
Trailheads with parking in Walnut Creek and Concord

Lime Ridge is located on the eastern edge of Walnut Creek on a dominant ridge leading to Mount Diablo. It contains some of the last remaining chaparral in Walnut Creek and a rich diversity of plant and animal life. Lime Ridge gets its name from the limestone in the area that was quarried by the Cowell Portland Cement Company. There are many hiking, biking, and wildlife viewing opportunities through multiple plant communities and quarries. Portions of Lime Ridge are within the City of Concord and managed by The city of Walnut Creek.


Yes, although leash rules vary depending on what section you are in and rangers recommend dogs remain on leash at all times.

In the North Lime Ridge area, north of Ygnacio, dogs must be under positive voice and sight command or leashed at all times. Since cattle graze in this area, dogs chasing cattle can be a serious issue. Lately, there have been some negative dog vs. coyote encounters when dogs stray close to dens as well.

No dogs are allowed at any time in the center section of Lime Ridge south of Ygnacio. This is the Lime Ridge Wildlife Preserve area. South of the Preserve, dogs are allowed once again but on leash only.

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