Geography of New York–New Jersey Harbor Estuary USGS topographic maps. Many jurisdictional issues appear in U.S. law. Bi-state New Jersey New York Inter-state New York New York Bay East River Long Island Sound Bronx County Kings County Jamaica Bay islands New York County Upper Bay islands East River islands Queens County Jamaica Bay islands Richmond County Westchester County New Jersey New York Lower Bay Upper Bay East River Lower Bay Raritan Bay Jamaica Bay Arthur Kill Newark Bay Kill van Kull Upper Bay Hudson River East River One of the many duties of the Port Authority of New York and New Jersey is to develop trade interests
New Jersey v. New York channel. This agreement was fashioned in order to allow New Jersey to build docks on the riverfront, while allowing New York to control islands that it already considered integral parts of its territory. This led to places such as Ellis Island located on the New Jersey side of the river, but belonging to New York. Between the 1890s and 1934, Ellis Island was expanded through land reclamation and soon became a major center for immigrants coming from Europe to the New World. This land was added by the federal government and considered part of New York for decades before New