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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Behind-the-Scenes Talk & Tour at the Refuge

December 14 at 10:00 am
Grab your camera and join the adventure as we lead you on a special journey through the wildlife management area, not typically open to the general public. Staff and volunteers…

Jockey Hollow Then & Now Hike

December 21 at 1:00 pm
To commemorate the 60th Anniversary of the first public announcement of the proposed 10,000-acre jetport, we invite you to spend the afternoon with nature and history. Together we will explore…

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 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


Great Swamp Partners Commemorate Anniversary

JETPORT IN MORRIS COUNTY.” On December 3, 1959, this startling headline appeared in the Newark Evening News revealing the Port of New York Authority’s intent to claim 10,000 acres in Morris County to build the world’s largest regional airport. The proposed plan would obliterate this serene, sparsely settled marshland and eliminate countless varieties of wildlife….
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Newsletter_Fall Winter 2019 Pg 1

GSWA Fall-Winter 2019 Newsletter

In this issue: Rolling Knolls Update, Are We Pro Development?, Upcoming Events, A Surprise Bequest, 2019 Gala, Fashion Conscious Plants at the CMA, Climate: What’s in Store for NJ, Plastic Bag Bans, Microplastics – Part Two, Flooding Really Stinks in Paterson, and more…
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