Celebrating 50 years of saving land for people, for wildlife, forever

What We Protect

We protect land that supports the things we can't live without - like clean water, climate protection, and healthy communities - and safeguard the places that make life worth living, like parks for recreation and plant and animal habitat.

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How We Do It

Over the past 40 years, we've helped save millions of acres through land acquisition, funding, and research and advocacy. We're also increasing access to the great outdoors through the support of grassroots efforts and park enhancement projects.

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What You Can Do

Donate to support OSI’s work

Become a part of our mission to safeguard at-risk places through your tax-deductible gift.


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