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video water playFlat Rock Brook is a 150-acre nature preserve and environmental education center in Englewood, NJ, just two miles from the George Washington Bridge. Visit our 3.6 miles of self-guided forested hiking trails that lead to a cascading stream, wetlands, pond and meadows. Register for one of our environmental programs for schools or the public and learn about our natural world. Come explore and learn with us!


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Give the Gift of Nature

Volunteer luncheon661

Give the gift of nature for the holidays!

It’s easy to give a Flat Rock Brook membership to a friend, family member or colleague for any occasion.

Your gift recipient will receive notice of your special gift and all the benefits of a Flat Rock Brook membership for a full year.

Flat Rock Brook Members Receive:

  • Our tri-annual newsletter with news and advance notice of Flat Rock Brook programs and events.
  • The members only privilege of renting our building for a birthday party or other event.
  • The members only privilege of enrolling your child in summer camp.
  • Free admission to the Great Fall Festival - BBQ, music and family festivities. 
  • The knowledge that you are making a difference in your community.

Flat Rock Brook is a 501c (3) nonprofit organization.  Membership and donations to Flat Rock Brook are tax deductible to the full extent of the law.

Purchase your gift membership today!

Gift Membership


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Adopt-a-Raptor this Holiday Season


Share the Gift of Wildlife


One of Flat Rock Brook's most popular exhibits is our aviary where we house 5 birds of prey that are all unable to be released into the wild.  Their home is now Flat Rock Brook, where our staff provides the care that they need.  Our birds act as animal ambassadors and help us teach thousands of people each year about protecting and respecting wildlife.  Help support our special birds!  Various adoption levels allow our supporters to provide food, enrichment, and enclosure maintenance for 1 month, 3 months, 6 months or 1 year.  Each level offers different benefits, such as a photo and certificate of adoption for your raptor or even a meet and greet!  Choose your raptor today!  
Visit Flat Rock Brook Adopt-a-Raptor to adopt and learn more.

Flat Rock Brook wants to recognize and extend a big "thanks" to our adopters!
Hero Level:  Rosa & Isabella Diaz, Lisa Wisotsky  
Champion Level:  Jennifer Ghahari, Erin Hoogstrate, Jill Abbott
Caregiver Level:  Lily & Beatric Gee & Esma Yetmez , Erin HoogstrateAmie Abu-Rustum,  
Friend: Captain Andy's Adventure Hour, Stephanie Seymour, Corinne Hoexter

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Assessing Forest Health in NJ

White tailed deer Odocoileus virginianus grazing 20050809

Flat Rock Brook kicked off its Guest Speaker Series with a presentation by Dr. Jay F. Kelly, Ph.D. titled “Assessing Forest Health in Central New Jersey: Effects of Deer and Invasive Plant Species”.  Dr. Kelly discussed ongoing work involving deer management at Flat Rock Brook and his work studying and monitoring the effects of deer overpopulation on forest health in New Jersey.  He spoke about the impact on local wildlife populations, including breeding bird populations.

The program offered an opportunity to better understand Flat Rock Brook’s decision to erect permanent deer fencing with a goal of improving forest health and regeneration. For those that were unable to attend, or would simply like to learn more, you can find a copy of the presentation here.


Flat Rock Brook wishes to recognize SUEZ for its generous sponsorship of our series. SUEZ web logo


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Flat Rock Brook Installs Deer Exclosure

Deer Exclosure WebFlat Rock Brook Nature Center’s forest has experienced extensive habitat degradation caused by the overpopulation of deer feeding on native tree seedlings and saplings. Overgrazing deer prevent the forest from naturally regenerating. The shrub layer disappears, leaving a barren understory that is no longer able to function as habitat for wildlife. This problem, combined with the rapid spread of non-native plants, or invasive species, is compromising the overall health and biodiversity of our forest. This has become a serious threat to forests across the state of New Jersey.

Our Board of Trustees and staff began discussing deer management options several years ago. After careful research and consultation with authorities that weighed various solutions, it was decided that a deer exclosure would be the most effective resolution. Creating deer exclosures on the preserve offers the most sustainable and effective method for long-term forest health and regeneration. The fencing in of crucial habitat within our preserve will give the forest understory a chance to regenerate and rebound after years of extensive damage. Native plant communities will return, biodiversity will increase and viable wildlife habitat will become more readily available.

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Public Program

Hikes with Tykes

Have you ever wished you had a naturalist guide along on a family hike to help you point out the sights?  Here’s your chance!  Join us for a fun and informative nature walk and learn about what’s going on in the natural habitats of Flat Rock Brook. *Registraton for this event will close at 2 pm on December 13!*

Winter Solstice Walk

The winter solstice is the longest night of the year. Many cultures around the world have celebrated the winter solstice for hundreds, even thousands of years as they watched the days grow shorter and wait patiently for the sun to return.  Join Flat Rock Brook staff for a program full of folklore and hiking on our trails. *Registration for this event will close at 2 pm on December 19!*


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