Events

08-19-22 Volunteer Workday

Volunteer for CMA Stewardship Day - August 19th

August 19 at 9:00 am
Ready to get a little dirty and sweaty in the swamp? Need community service hours? College students, are you looking for something worthy to add to your resume?! Join us…
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Cook with GSWA

Cook with GSWA: Pumpkin gnocchi, fresh mozzarella & pesto.

August 24 at 6:30 pm
Back by popular demand, GSWA's Hazel England and Sandra LaVigne make cooking fun! Grab your apron and c'mon out for a hands-on cooking class. We will teach you about "eating…
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08-26-22 Volunteer Workday

Volunteer for CMA Stewardship Day - August 26th

August 26 at 9:00 am
Ready to get a little dirty and sweaty in the swamp? Need community service hours? College students, are you looking for something worthy to add to your resume?! Join us…
REGISTER»

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 and is one of only eight New Jersey groups to achieve this designation! GSWA’s vision supports the protection, preservation and promotion of NJ’s open spaces.

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Things to See and Do

From hiking & biking, to horseback riding & kayaking, there are countless outdoor activities to enjoy in this area. What’s your adventure today in New Jersey’s great outdoors?

Explore

Eco-Friendly Living

Every individual home has an effect on non-point source pollution in our watershed. Use our interactive home guide to lean how you can minimize your impact and help keep our watershed healthy.

Learn

WATERKEEPER®

The Riverkeepers are the primary voice using the advocacy model to stand up for clean waterways. GSWA is proud to be the Passaic River Waterkeeper Alliance Affiliate, protecting the source to sea.

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Featured Programs

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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.

Programs
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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

New GSWA Video

The Passaic: One River, One Community

The Passaic: One River, One Community

Watch our new, 4-minute video that takes you on a journey down the Passaic River from its headwaters in Mendham to Newark Bay where the river meets the sea. Learn more about what we do, how we do it, and why we do it.
Watch Video

GSWA Partner Events

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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 info@greatswamp.org.
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Featured Event

Stream Assessment Training

Stream Assessment Training – FREE

LEARN HOW TO MONITOR A STREAM’S HEALTH. Take a moment to really look at one of your local streams. At first glance, it may look completely fine. But to the trained eye, it could be a very different situation. How can you tell?

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Publications

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GSWA Spring 2022 Newsletter

Take the GSWA “Source to Sea” Challenge. By Kate Barry, GSWA Trustee. During the pandemic, I became involved in virtual runs, which are races you can participate in from any location, at your own pace, inside or outside. They can be completed at any time either by oneself or with others…
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