The Open Space Institute protects scenic, natural and historic landscapes to provide public enjoyment, conserve habitat and working lands and sustain communities.
Founded in 1974 to protect significant landscapes in New York State, OSI has been a partner in the protection of nearly 2.2 million acres in North America. A leader in environmental conservation, the Open Space Institute leverages our knowledge and attracts resources for strategic investments to make innovative land conservation happen.
All of OSI’s work is directed by a consistent conservation strategy that emphasizes permanent protection on a landscape-level scale. Each discrete transaction, whether buying a conservation easement on a small family farm in the Hudson River Valley or helping fund the purchase of 100,000 acres in Maine, represents an effort to align the pieces of the landscape puzzle, and prevents fragmentation, which disrupts key wildlife corridors, impairs water and air quality, and diminishes the beauty and scenery of natural areas.
We gratefully acknowledge that much of OSI’s work in New York State is accomplished through the Open Space Land Trust, Inc, which received a permanent fund from the Lila Acheson and DeWitt Wallace Endowment in 2001.