Your water. Your environment. Your voice.

Butterfly Festival

Thanks to everyone who came out to the 2014 Butterfly Festival!
We’ll see you again next year!

Flying Colors

Click here for the 2014 Watershed Butterfly Festival
Program Schedule!

Congrats to Annalise Hollosy, 2014 Butterfly Festival Design Contest winner!

12th grader Annalise Hollosy is a student at Hopewell Valley Central High School. Her design creatively depicts our theme of Flying Colors, celebrating the splendor and vibrancy of the butterfly. This theme reflects the changes that are taking place at the Watershed, including a new LEED Platinum environmental center and a redesigned trail network.

Thanks to all our local high school and middle school students who submitted artwork for this contest. We were amazed and inspired by the talent and creativity that went into all submissions, and our judges had a very difficult time making a decision.
Flying Colors



Welcome Winter Walk in Princeton

Saturday, January 10, 9:30 - 11:30AM, Adults and Families (children 5yo+), $5 pp

Join Jeff Hoagland at Mountain Lakes Preserve in Princeton for an early winter walk! Dress warmly, boots are recommended. This hike is co-sponsored by the Friends of Princeton Open Space.

Learn more!


Volunteer at the ‘Shed

Discover the many ways you can help at the Reserve. We have volunteer opportunities available in many different capacities. Are you good at event planning? Clearing trails? Conducting scientific research? Or are you looking for a corporate work day for you and your coworkers? Click here to learn more and complete a volunteer application..


Sign up to receive our E-Newsletter and Action Alerts.


Join the Community

  • a-Facebook
  • b-Twitter
  • c-Instagram
  • d-Flickr
  • e-YouTube
  • f-Vimeo