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 News Open Space Institute Expands Appalachian Landscapes Protection Fund to Support Conservation of Climate Critical Pennsylvania ForestsOSI has announced a major new effort of its Appalachian Landscapes Protection Fund to conserve key forested areas in western and central Pennsylvania, a region that contains the state's largest reserves of forest carbon.
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Featured e-News July 2022: Focus on ClimateRead about OSI's recent climate-focused work, an expansion of the Appalachian Landscapes Protection Fund to western and central PA, including strategies to combat the effects of sea level rise, and more.
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Latest News
- Historic Coosawhatchie River Conservation Effort Expanded by the Open Space Institute and The Nature Conservancy
- Open Space Institute Expands Appalachian Landscapes Protection Fund to Support Conservation of Climate Critical Pennsylvania Forests
- ‘Lewisfield Preserve’ Created Along Cooper River Corridor