The Rockaway River is a tributary located in northern New Jersey, primarily flowing through Morris County. It originates in the town of Dover and travels approximately 30 miles before joining the Morris Canal and eventually the Passaic River. The river is known for its scenic beauty and recreational opportunities, including fishing and kayaking. The Rockaway River is an important waterway for the surrounding communities, providing water resources and supporting local ecosystems. It flows through several parks, such as Hedden County Park and Morris County Park, making it a popular destination for outdoor activities and nature enthusiasts.