At OSI, we protect land for people, for wildlife, 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 e-News March 2023: Soaring Into SpringUpdates from across OSI, including new developments on the Black River, a 2,200-acre addition to the Santee River Wilderness Corridor, opportunities for young conservation leaders, an expansion to New York's West Mountain State Park, and more.
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Featured News OSI Invites Applications for Its 2023 McHenry Summer Fellowship ProgramAwards are granted to graduate and undergraduate students seeking to partner with Hudson Valley nonprofit organizations to pursue research, leadership, and community involvement in New York’s Hudson Valley. Apply by April 3, 2023.
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