Welcome to Constitution Marsh Audubon Center & Sanctuary

The natural side of the Hudson River.

Constitution Marsh Audubon Center and Sanctuary is a unique and beautiful tidal marsh located in Putnam County, New York, and serves as vital natural habitat in the Hudson River Estuary. It is located in Putnam County, New York on the east shore of the Hudson River, just south of the village of Cold Spring. The marsh is an Audubon New York Important Bird Area, a New York State Bird Conservation Area, and is designated as a Significant Coastal Fish and Wildlife Habitat.

We conduct nature education programs for visiting groups, bird studies, invasive species management and habitat restoration efforts. Please note we are are a small facility with very limited space for public parking, and do not allow dogs on the trail. Please read our FAQ page for important information and a safe and enjoyable visit, and explore the above menus to learn more about Audubon New York's stewardship and education programs devoted to the conservation of birds, other wildife and their habitats across New York State.

Group and Public Programs

School Programs

Students become scientists when visiting Constitution Marsh

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Planning a Visit

Planning a Visit

Important information about visiting Constitution Marsh

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