[1] The creek system drains a rural agricultural and forested area on the western edge of the Pinelands north and northeast of Camden and the New Jersey suburbs of Philadelphia.
The North Branch rises in northern Burlington County, in Mirror Lake, just south of Fort Dix.
The South Branch rises in central Burlington County near Chatsworth and flows generally northwest.
The North and South branches join near Rancocas State Park, approximately 3 miles (5 km) west of Mount Holly, near the crossing of the New Jersey Turnpike and Interstate 295.
After rehabilitation of the bridge in the 1980s, the powered mechanism was removed due to the near-lack of creek barge traffic and the expense of maintenance.