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The Watershed Institute, founded in 1949, is central New Jersey's first environmental organization, dedicated to keeping water clean, safe, and healthy. From our 950-acre Watershed Reserve in Hopewell Township, we lead a comprehensive effort to protect and restore the natural environment through a blend of conservation, advocacy, science, and education. At the heart of our Reserve is the award-winning Watershed Center - a LEED-Platinum facility that serves as a hub for innovation, learning, and community engagement. Visitors can also explore our popular Kate Gorie Butterfly House, Wargo Pond, Tree Frog Trail, and over 10 miles of trails. The Center is free to visit and open on weekdays from 9 a.m. to 5 p.m. and weekends from 10 a.m. to 4 p.m.
Greater Mountain Lakes Open Space Area
Sourland Mountain Preserve - Somerset
The Lawrence Hopewell Trail