Plainsboro Preserve

The Plainsboro Preserve, located on Scotts Corner Road, includes over 1,000 acres of undisturbed open space with nature trails and 50-acre McCormack Lake. The preserve was established through the cooperative efforts of Plainsboro Township and Middlesex County. 

The Preserve is not only a gem for Plainsboro Township, but for surrounding communities as well. Residents and non-residents alike can enjoy this outdoor wonder. 

Phone: 609-799-4013


Open every day at 7:00 am. Closing times vary depending on the season. See "calendar" tab on left hand side for daily hours. 

rush holt Environmental Education Center

The Rush Holt Environmental Education Center was constructed by Plainsboro Township through a fundraising campaign - no Plainsboro tax dollars were spent!

The Rush Holt Environmental Education Center offers a diverse array of educational programs for organized groups and the general public, including natural history programs and workshops, slide and lecture programs, interpretive hikes, and educator workshops, serving as an outdoor classroom for schools and other groups. 
Plainsboro Preserve Main Building

Quiet Wonders of Nature

The Preserve is a regional treasure that provides a beautiful, untouched setting to study and observe the quiet wonders of nature. It serves as a protected habitat for numerous plant and wildlife species, including those that are rare or endangered. View a photo gallery of the preserve.


The following regulations are in effect at the Preserve and are strictly enforced by Park Rangers:

  • 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
  • No boating (unless organized through the Recreation and Community Services Department)
  • No swimming