The GSWA office is currently closed. GSWA is continuing to offer you virtual programs, activities, and resources while our staff works remotely. Our CMA is open for recreation pursuant to current state rules. Please continue to observe all CDC health recommendations and follow social distancing practices. For more information visit NJ’s Covid-19 FAQ


September Hikes with GSWA

September 10 at 6:00 pm
This September, GSWA is offering three evening hikes at our 73 acre wetlands restoration site, the "Conservation Management Area". What can you expect to see in September? Mushrooms and other…

Virtual Evening Briefing: Putting your Garden to Bed the Watershed Friendly Way

September 29 at 6:30 pm
Come the Fall, many homeowners snip, clip and clear their gardens with zeal, not realizing¬†that some fall tasks are better than others at helping your garden to get ready for…

Great Swamp Virtual Gala and Silent Auction

October 1 at 7:00 pm
GSWA is thrilled to bring our communities together again in 2020 by hosting our annual Gala online! On October 1, you can enjoy all the fun and excitement of our…

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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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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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 about the prior year to help inform the public about the data we collect and the issues our watershed faces.

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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GSWA Partner Events


GSWA Partner Events

GSWA and its partners in our historic watershed and across the Passaic River region are excited to provide you with a listing of free-to-the-public environmental events happening locally.
For inclusion please contact
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Featured Post

Nature is open

Sherrill helps lead landmark conservation bill

Rep. Mikie Sherrill, D-11, helped lead passage Wednesday, July 22, of the Great American Outdoors Act, bipartisan legislation to permanently fund the Land and Water Conservation Fund with $900 million annually from offshore oil and gas revenues and address the nearly $20 billion maintenance backlog in national parks and other land management agencies…
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GSWA Fall-Winter 2020 Newsletter

GSWA publishes an organizational newsletter two times per year, fall/winter and spring/summer. Each edition contains timely and informative articles contributed by GSWA staff members. GSWA members receive a hard copy of our newsletters, however, our electronic version may be viewed by anyone. Check it out!
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