Ellis Island, at the mouth of the Hudson River in New York Harbor, is the location of what was at one time the main entry facility for immigrants entering the United States; the facility operated from January 1, 1892, until November 12, 1954. 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 in Jersey City, New Jersey and New York City.