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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Natural and Cultural History of Jockey Hollow Then and Now

October 18 at 6:00 pm
Jockey Hollow Park Ranger and Historian, Eric Olson, and our own Hazel England, Director of Education and Outreach - Land Steward, will co-lead a hike and outdoor talk on the…

Change of Colors Hike

October 20 at 10:00 am
October is the perfect time to head outdoors and check out all the vibrant colors of autumn, and Garret Mountain Reservation is the place to be. GSWA Education Associate, Adam…

Stream Assessment Training

October 20 at 10:00 am
Interested in learning how to monitor a stream or gaining a better understanding about stream health? This one-day, two-part training session is for you! An indoor classroom session teaches you…

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 inform the public about the data we collect and the issues our watershed faces. Check out our most 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

Gala 2018

Great Swamp Watershed Association’s 2018 Annual Gala and Silent Auction

2018’s Honoree: Governor Thomas H. Kean – he remains to this day one of the most popular governors in New Jersey history. We are honoring the governor for his environmental leadership during his administration for enacting landmark protections for New Jersey’s shoreline and freshwater wetlands.
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Featured Post

landfill in Chatham

Towns Support GSWA plan to cap Superfund Site

Great Swamp Watershed Association recently received the backing of Harding Township through a resolution urging the Environmental Protection Agency (EPA) to cap a Superfund site called Rolling Knolls Landfill located between Chatham Township and Green Village…
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2018 Fall Newsletter_new for website

GSWA Fall-Winter 2018 Newsletter

In this issue: Rolling Knolls Landfill, 2018 Gala, Closing Your Pool, GSWA and Paterson SMART (Stormwater Management and Resource Training), Upcoming Events, Invasive Species and Climate Change, Legacy Giving, New Educational Collaboration, Plastic Pollution, The Fungal Jungle and more!
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