Gravel Hill or Gravelhill is an

unincorporated community An unincorporated area is a region that is not governed by a local municipal corporation. Widespread unincorporated communities and areas are a distinguishing feature of the United States and Canada. Most other countries of the world either have ...

located within Monroe Township in Middlesex County,

New Jersey New Jersey is a state in the Mid-Atlantic and Northeastern regions of the United States. It is bordered on the north and east by the state of New York; on the east, southeast, and south by the Atlantic Ocean; on the west by the Delaware ...

, United States.Locality Search
State of New Jersey. Accessed February 8, 2015. Located in a rural part of Monroe Township, the area is made up of approximately half farmland and half forestland. Homes line the roads that run through the area.

References

Monroe Township, Middlesex County, New Jersey Unincorporated communities in Middlesex County, New Jersey Unincorporated communities in New Jersey {{MiddlesexCountyNJ-geo-stub