Buildings and facilities are closed to the public but trails remain open.  Please refer to our COVID-19 resource page for the latest information on NJ Audubon’s response to the COVID-19 health crisis, center closings and postponed programming. 

The Plainsboro Preserve building and facilities are open to the public Thursday to Saturday only. There may be limited access and masks are a requirement.

Please do not leave any animals at our centers.  

The Plainsboro Preserve is a collaboration with the Township of Plainsboro, the County of Middlesex, and New Jersey Audubon. Close to 1,000 acres of lands preserved by the County of Middlesex and the Township of Plainsboro support a diversity of habitats and wildlife, with one of the largest lakes in the area. The Preserve is a natural jewel for residents and visitors to the area and an ecological legacy for future generations.

New Jersey Audubon operates the Preserve’s Rush Holt Environmental Center from April through October, with the Township operating the Center from November through March. There are environmental education programs, nature experiences, and recreational offerings throughout the seasons. The Center houses program space, a variety of exhibits, live animals and a reference library.

Enjoy over five miles of trails meandering through mature beech woods, wet meadows, and the shoreline of scenic 50-acre McCormack Lake. Walk the floodplain of Devil’s Brook in search of the more than 150 species of birds that call the Preserve home during the year. Plants on site consist of a diverse showing of spring wildflowers and also include over ten species of rare or endangered plant species found sparingly elsewhere in the state.


Rush Holt Environmental Center Hours:
November 1 through March 31 (operated by the Township of Plainsboro)
Thursday through Sunday – 11:00 am to 4:00 pm
Closed Holidays and Monday – Wednesday

Trails Open Daily
Winter Hours – 7:30 am to 5:00 pm

Critter Talk with Miss Anne



Pileated Woodpeckers


Center upcoming events

Wed 12

Family Fun Totally Terrific Trees

August 12 @ 10:00 am - 11:30 am
Fri 14

An Evening with the Moths -August

August 14 @ 8:30 pm - 10:30 pm

Things To Do

  • Over 5 Miles of trails
  • Environmental Education Center
  • Indoor tree house
  • Under the pond room
  • Lake view deck
  • Reference library

Special Programs

New Jersey Audubon is closely monitoring federal, state and local COVID-19 guidelines related to our summer camp programs.  With the health and safety of our staff and community our top priority, New Jersey Audubon’s nature centers are currently closed and school programs, field trips and events have been postponed or reimagined using virtual platforms.  At this time, summer camps are on still on the calendar, but that may change.  We will provide updates as this situation continues to emerge. Thank you very much for your support!

Please click here ( for our latest updates in response to the COVID-19 crisis. 

Summer Nature Camp Quests

Nature at your own pace…in your own space


Keep in touch with your NJ Audubon summer camp teachers and counselors and meet new experts from across the state of New Jersey.  At home in northern New Jersey?  Explore the shore with Mr. B in Cape May.  Don’t have access to green space nearby?  Learn about New Jersey’s animals and plants and then explore your own space to see what you can find.  Never been to swamp?  Join us for a virtual slog.  All this and more for your summer adventure.

Bridges to the Natural World is a subscription series celebrating nature!  Subscription packages will focus on a different theme including Amazing Animals, Wonders of Wetlands, Creepy Crawlers and Outdoor Skills.  Each subscription includes exclusive access to a variety of short, exciting nature and how-to videos from NJ Audubon naturalists, an information-rich themed booklet mailed to your child with daily challenges, and nature quests that can be done in your own neighborhood or local green space. Each packet will also include surprise materials that support things your child can do to become a NJ Audubon Junior Naturalist.

If you have already registered for in person camp at our center, please contact us directly for any refund needed.


Plainsboro Preserve
80 Scotts Corner Road
Cranbury, NJ  08512
[email protected]

School and Youth Environmental Education Programs

Please call 609-427-3052 x102 or email [email protected] for information

Pre-order your plants for Center Side pickup June 6th and 7th

Plainsboro Preserve will be holding a plant sale to raise money for center projects. We will be selling high-quality garden plants that are specially chosen to attract birds, butterflies and hummingbirds to your backyard. Your contributions help support education, conservation, and research.

Scout Programs

We offer a variety of badges that relate to the Plainsboro Preserve and Central New Jersey wildlife and natural environments. Programs are scheduled at least one month out from the initial request. Please call 609-427-3052 x102 or email [email protected]

Staff & Personnel

New Jersey Audubon operates the Plainsboro Preserve from April through October.

For inquiries from November 1 through March 31, please contact us via phone/email.

Contact Us

80 Scotts Corner Road
Cranbury, NJ 08512

[email protected]


  • No smoking, except in the parking area.
  • No picnicking, fires, camping or woodcutting.
  • No alcoholic beverages on the property.
  • No vehicles, bicycles, skateboards or horses on the trails.
  • No hunting or fishing.
  • No collecting of plants or animals.
  • No pets.
  • Leave only footprints — Take only pictures and memories.