It rises in the Pinelands of southeastern Burlington County and flows generally south, through Bass River State Forest, and joins the Mullica from the north approximately 1 mi (1.6 km) upstream from its mouth on Great Bay. The lower 2 mi (3 km) of the river forms an arm of the estuary of the Mullica. The river is part of the watershed of the Mullica that drains an extensive unspoiled wetlands region of New Jersey, and is noted for its runs of smallmouth bass.
The Striped Bass is the largest member of the sea bass family, often called "temperate" or "true" bass to distinguish it from species such as largemouth, smallmouth, and spotted bass which are actually members of the sunfish family Centrarchidae.
Yearling striped bass were seined from the Navesink and Shrewsbury Rivers near Red Bank, NewJersey in 1879 and again in 1881, and transported by train across the continent to San Francisco Bay.
Bass are found along sandy beaches, in shallow bays, along rocky stretches, over and among submerged or partially submerged rocks, and at the mouths of estuaries, the precise situations that they occupy being governed by the availability of food.