The Hackensack River is a tidal estuary located in northeastern New Jersey. It flows approximately 45 miles, starting from the town of Hackensack and emptying into the Newark Bay. The river is an important waterway for the region, providing habitats for various wildlife and serving as a recreational area for activities like fishing and kayaking. Historically, the Hackensack River played a significant role in the development of the surrounding communities. It was used for transportation and trade, contributing to the growth of cities such as Hackensack and Jersey City. Today, efforts are being made to improve water quality and restore natural habitats along the river's banks.