At OSI, we protect land for people, for habitat, forever. Learn More About Who We Are
A Place for Life
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.
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 our support of grassroots efforts and park enhancement projects.
New & Noteworthy
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Featured News OSI Acquisition Links Bashakill Wildlife Management Area to Three State Forests in the ShawangunksMore critical acreage along the scenic Shawangunk Ridge is conserved for wildlife habitat and recreation. The newly-conserved land safeguards the Bashakill Wildlife Management Area while serving as a connecting parcel for three celebrated trails.
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Featured News OSI Secures $11 Million from William Penn Foundation for Land Conservation through its Delaware River Watershed Protection FundOSI's Delaware Watershed Protection Fund protects the forests that filter drinking water for 15 million people in New York City, Philadelphia, Trenton and elsewhere. Since 2012, the Fund has conserved some 20,000 acres of critical watershed lands.
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What You Can Do
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Become a part of our mission to safeguard at-risk places through your tax-deductible gift.
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