Lenape Park is a 450-acre wildlife reserve and park that is part of the Rahway River Parkway in Union County, New Jersey. The park is located in four towns: Westfield, Springfield, Kenilworth, and Cranford.It is linked by a crosswalk to Nomahegan Park. The park encompasses stretches of both the Rahway River and Nomahegan Brook, and comprises one of the largest undeveloped properties in the Rahway River watershed.