At the mouth of the Hudson River in New York Harbor, the island is the location of what was from January 1, 1892, until November 12, 1954 the main entry facility for immigrants entering the United States; the facility replaced the state-run Castle Garden Immigration Depot (1855-1890) in Manhattan. It is owned by the Federal government and is now part of the Statue of Liberty National Monument, under the jurisdiction of the US National Park Service. It is situated predominantly in Jersey City, New Jersey, although a small portion of its territory falls within neighboring New York City.