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Founded in 2003, North Shore Land Alliance is an accredited Land Trust that has been instrumental in working together with land owners, municipalities and government agencies to protect 1,500 acres of conservation-worthy lands on Long Island, including the facilitation of 600 acres of local government acquisitions. The organization holds 27 conservation easements on public and private land, owns and manages 16 preserves and maintains an additional 132 acres of forest, meadows, wetlands, trails and a community garden. The Land Alliance is dedicated to educating the community about the importance of protecting land and water resources and biodiversity and how conserving land can mitigate and abate the harmful impacts of climate change.

Our Core Values

Our Mission

Conserving and stewarding Long Island’s natural and historic lands, waters and environmental resources.

Through education, outreach and volunteerism, we connect people to nature and inspire a community conservation ethic.

Upcoming Events

Featured Event

Annual Open Space Society Dinner
Friday, June 12, 2026 | Oyster Bay Cove

Enjoy an unforgettable evening at this historic 17-acre estate, set within a serene, permanently conserved landscape that reflects the North Shore’s commitment to protecting open space and natural beauty.  For more information, contact Deb Wiener at 516-922-1028 or deb@northshorelandalliance.org.

Conservation News

All Posts

Saving Land News & Press Highlights

  • Priority Conservation Areas on Long Island

    Land Alliance Identifies Priority Conservation Areas on Long Island

    Land Alliance Identifies Priority Conservation Areas on Long Island What if the fate of nature wasn’t tucked away in state and national parks, but rather in the very neighborhoods and backyards you drive past every day? Private landowners in the United States own about 60 percent of all land, yet only 3 percent of that […]

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  • Red Cote Preserve Expansion Becomes a Reality

    In January 2026, the Land Alliance received exciting news that we had been awarded a $1.285M grant from the New York State Department of Environmental Conservation (through its Water Quality Improvement Project program) for the acquisition of the 5-acre Pulling property in Oyster Bay Cove.

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  • skunk-cabbage-and-marsh-marigold

    Hoyle Jones Wildlife Corridor

    The Land Alliance Board and Staff are very pleased to announce the dedication of a beautiful and environmentally significant seven-acre parcel along Frost Mill Road in Mill Neck in honor of Board Chair Emeritus Hoyle Jones.

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  • Land Alliance Receives National Reaccreditation

    Land Alliance Receives National Reaccreditation

    The Land Alliance proudly announces our second reaccreditation by the Land Trust Accreditation Commission (LTAC). This is a significant milestone that underscores our organization’s leadership in land conservation and its enduring commitment to best serving our community.

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  • Land Alliance Roosevelt Community Garden Opens for a Ninth Season

    Celebrating the 9th Season Opening of Community Garden

    Nine years of planting seeds have grown into something far beyond soil and harvests. The Land Alliance Roosevelt Community Garden has become a vibrant place for learning, growing fresh, locally grown food, building community and caring for people, land and wildlife.

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2026 Spring/Summer Saving Land Newsletter

Our latest Saving Land newsletter is online!
Read about the impact your support is making!

Each issue features our land preservation projects, community initiatives, upcoming events and highlights of the people and partnerships that make our mission possible. It’s a great way to stay informed and inspired by the work we’re doing to protect the natural lands and waters of Long Island.

Nature Needs You!

There are so many ways you can get involved to protect the environment for today and generations to come.