park in Plainfield and North Plainfield, New Jersey
Green Brook Park is a 100-acre (40 ha) county park along the Green Brook, a tributary of the Raritan River, in the city of Plainfield in Union County, New Jersey. Designed by the Olmsted Brothers, it was added to the National Register of Historic Places on May 14, 2004, for its significance in landscape architecture. It extends into the borough of North Plainfield in Somerset County.
