Our mission is to forever preserve the remaining natural lands on and around Mount Diablo, and to connect Mount Diablo to its sustaining Diablo Range.

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Riggs Canyon and Finley Road Ranch

Finley Road Ranch

Park District and Save Mount Diablo partner on a purchase option to protect one of our top five priorities!

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Upcoming Activities

Curry Canyon Ranch Mt. Diablo Audubon Hike

October 8th, 2022
Sold Out—Join the Waitlist
Curry Canyon Ranch

Walnut Creek Open Space Backcountry

October 15th, 2022
Sold Out—Join the Waitlist
Borges Ranch Parking Lot

Hit the Trails – Mountain Biking

October 22nd, 2022
Sold Out—Join the Waitlist
Smith Canyon

Our Land Conservation Work


We protect natural lands through acquisition; cooperative efforts with parks, developers, and landowners; and conservative easements.

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We defend Mount Diablo and its foothills from threats of development through land use planning and advocacy.

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We restore habitats prior to transfer to public agencies for permanent preservation and public use.

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We help people enjoy Diablo's parks through events and educational and recreational opportunities.

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Lands protected by Save Mount Diablo between 1971 and 2022

Many Acres of Wild Lands Have Been Saved

Protected Lands from 1971–2022

In 1971, there was just one park on Mount Diablo. It consisted of only 6,788 protected acres, mostly around the peak. Working with partners such as California State Parks, Contra Costa County, the East Bay Regional Park District, local cities, the Coastal Conservancy, Contra Costa Water District, and others—we, together with the help of generous supporters like you, have pieced together a conserved expanse of Diablo wild lands that today is greater than 120,000 acres, an area bigger than Point Reyes National Seashore or the Golden Gate National Recreation Area.

Although we and our partners have had tremendous success at reassembling a large swath of the wild lands around Mount Diablo, there is still much work to do to save the remaining unprotected lands and allow our community to grow.

Protected Lands

Join us to save the remaining natural lands of Mount Diablo!

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