We work to preserve, defend and restore the land on and around Mount Diablo to ensure healthy ecosystems and continued access for people and wildlife to enjoy. Mount Diablo and its foothills are the most significant natural landscape in our region. Only half of Mount Diablo is currently preserved. The other half is at risk of being lost forever.

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Since Save Mount Diablo's founding in 1971, preserved open space has increased from less than 7,000 acres to over 100,000 acres in more than 40 parks. Mount Diablo is still threatened by development. That could mean the loss of wildlife corridors, ecosystems and recreational opportunities. Your support will preserve these natural lands forever to safeguard our quality of life, including the quality of our air, water and views.