Kisco River Kisco River The Kisco River is a creek that runs through the Mount Kisco, New York area. It is formed by the forks of Chappaqua Brook and an unnamed stream. It follows a winding course before emptying into the New Croton Reservoir at Lake Road Bridge in the town of New Castle near the hamlet of Stanwood and eventually into the Atlantic Ocean via the Croton River, the Hudson River, and New York Harbor. Its name is derived from the village of Mount Kisco, which the river flows through. The name of Mount Kisco is further derived from "seesquee", which
River Vale, New Jersey section bordering Emerson to the south, Harrington Park to the southeast, Old Tappan to the east, and Pearl River, New York to the north. Its borders are defined by the Hackensack River to the east, which was dammed to form Lake Tappan, and Pascack Brook to the south. The northern border is defined by the New York-New Jersey state border. The western border has several sections, including a section defined by an unnamed creek and a section defined by Cedar Lane. The southern portion of the township lies between the Hackensack River and Pascack Brook, and is relatively flat. The