Land Stewardship

GSWA receives national accreditation!

Becomes one of only eight organizations in New Jersey to achieve this recognition!  


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Things to See and Do

From hiking and biking, to horseback riding and kayaking, there are countless outdoor activities to enjoy in this area. What adventure will you go on today?



Watershed Friendly Homes

Every individual home has an effect on non-point source pollution in our watershed. Learn more about what you can do to minimize your impact with our interactive home guide.




Everyone has right to clean water. Riverkeepers are on the frontlines of the global water crisis, using the advocacy model to stand up for that right. At GSWA, we are the official Waterkeeper Alliance Affiliate for the Passaic River.


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volunteer with Great Swamp Watershed Association

Volunteer Workday at the CMA

August 11 at 9:00 am
Volunteer with Great Swamp Watershed Association and help us maintain and improve access to our 73-acre Conservation Management Area. Tasks will include trail maintenance, fence repair, and invasive plant removal.…

GSWA Beer-B-Que

August 16 at 5:30 pm
Free brews, free food, and the great outdoors with the Great Swamp Watershed Association. There's no catch, we simply want to get to know our fellow watershed neighbors and Passaic…

Fungus Walk Through the Swamp

August 23 at 6:00 pm
Join your fellow fungus enthusiast and GSWA Education Coordinator, Adam Palmer, on a foray into the mysterious world of mushrooms, slimes and molds. Enjoy a hike around GSWA’s Conservation Management…

All Upcoming Events

From hikes to educational workshops, GSWA offers a wide variety of environmentally focused programs. We'd love to have you join us at an upcoming event!
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Featured Programs


In-School Education

GSWA is dedicated to teaching the younger generations about their impact on the watershed and river. Every year, we reach over 3,000 students through our in-school programming.


Water Quality

Every year, we publish a Water Quality Report Card to help the public understand the data we collect and the issues our watershed faces. Learn more about our recent report card.

Report Card



GSWA in Action

Want to learn more about GSWA and the work that we do? View our photo gallery to see us in action.
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Current News

Great Swamp Music Festival Debuts in HardingGreat Swamp Music Festival Debuts in Harding

Watershed News: Great Swamp Music Festival Debuts

Watershed News: Great Swamp Music Festival Debut
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Featured Post

Green Grass Earth Hour Facebook Post (2)

Stay Cool and Stay Green This Summer

Summer’s upon us and that means long lazy sunny days, trips to the beach and a relaxed attitude! But temperatures can get hot and hairy fast. When a heatwave looms, people all over the grid just crank up the A/C, but the result can be black and brownouts across town. So, how do you stay cool, save money, and be green all at the same time?
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Spring 2018 Newsletter_Cover

Spring 2018 Newsletter

We’ve preserved an additional 20 acres of land. This plot of land is adjacent to our 53-acre Conservation Management Area (CMA), and increases the area to 73 contiguous acres, open to the public for exploration of the natural habitats and floodplain forest…
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