521 Route 520, Marlboro, NJ 07746
732-842-4000, ext. 4312

Park Map (pdf)

Big Brook Map (mobile devices)

Park opens at 7 a.m. daily, year round.
Closing time is 9 p.m. through June 7; 9:30 p.m. June 8-July 17; and 9 p.m. July 18-August 15.

Please be advised:
There have been a handful of vehicle break-ins in the parks in the past few weeks. Incidents were reported at Big Brook Park, Thompson Park, and Holmdel Park. In most cases, car windows were broken and valuables were removed from inside. Our Park Rangers recommend securing valuables in the trunk and reporting suspicious activity. To reach a Park Ranger, contact the County emergency communications center at 732-577-8700. (posted 5/25/16)

The original 379 acre parcel of land that established Big Brook Park was formerly used as farmland for patients at the Marlboro Psychiatric Hospital, located across the street (Route 520).  The Park System purchased this property—which once contained a piggery, dairy farm and other agricultural operations—from the state in 1997, around the time it closed the hospital. In 2010, the Park System purchased an additional 36 acres, bringing the park total to 415 acres.

Named for Big Brook, which drains into the Swimming River Reservoir, the park contains forest made up of young wetland and maturing American beech, white oak, tulip poplar and hickory trees. Perhaps the park is better known for its rolling fields; made up of grasses, goldenrod and other perennials that provide a contiguous field habitat for butterflies, birds and other wildlife.


In addition to providing very good wildlife viewing opportunities, Big Brook Park is strategically located next to the Henry Hudson Trail. Visitors may now access a 5-mile section of the Henry Hudson Trail leading to Freehold via a 0.9 mile paved connector from a parking area located just off the main entrance.