Penns Grove Secondary is a rail freight line in the Delaware Valley in the southernwestern part of New Jersey in the United States. Part of Conrail's South Jersey/Philadelphia Shared Assets it runs for approximately 20 miles (32 km) between its it southern terminus at Penns Grove and Woodbury at the north where it joins the Vineland Secondary about 8.5 miles (13.7 km) south of Pavonia Yard in Camden. At its southern end the Deepwater Point Running Track continues another 3.7 miles (6 km) through Carneys Point to Deepwater.