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


"GSWA to Go" Summer Photo Challenge

June 1 at 10:00 am
Get ready for another GSWA photo challenge! We are looking for your nature/environment-inspired pictures. Here's how it works: ● Challenge runs 8 weeks (June 8 – July 31) ● 1…

(Ongoing throughout June) Make-at-home Warbler Nest Box Kit

June 3 at 8:00 am
It's as easy as 1-2-3, and just in time for nesting season. Register for this virtual program, collect the boxes from our office in a secure and safe way, then…

"Members Only" Early Morning Hike - July 28

July 28 at 9:00 am
C'mon out for an exclusive, members-only, semi-private hike with GSWA’s own Adam Palmer to explore our Conservation Management Area (CMA). Many people have hiked our trails during the lockdown which…

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!
View All»

Land Stewardship

GSWA receives national accreditation! Becomes one of only eight organizations in New Jersey to achieve this recognition!  


Read More

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.


Read More

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.
View Photos

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
Read More

Featured Post

Nature is open

Our Office is Closed but Nature is Open!

These are obviously challenging times. Many of us are working from home and those four walls can close in pretty fast. Remaining indoors for extended periods of time can really take a toll on your mind, body and soul. So, before that happens, schedule some time each day to step outside and breathe in the fresh air.* Go for a walk, run, or hike. And bring the family along…
Read More



GSWA Spring-Summer 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!
Read More