

The area surrounding the arch was redesignated as the "Gateway Arch National Park" (a national park) in 2018. The park is maintained by the National Park Service (NPS). The Gateway Arch was completed on October 28, 1965. The immediate surroundings of the Gateway Arch were initially designated the Jefferson National Expansion Memorial (a national memorial) by executive order on December 21, 1935. It is the smallest national park in the United States at 91 acres (37 ha), less than 2% the size of the next-smallest, Hot Springs National Park. Louis a park along the Mississippi River on the site of the earliest buildings of the city the Old Courthouse, a former state and federal courthouse where the Dred Scott case originated and the 140,000 sq ft (13,000 m 2) museum at the Gateway Arch. The national park consists of the Gateway Arch, a steel catenary arch that has become the definitive icon of St. the debate over slavery raised by the Dred Scott case.the first civil government west of the Mississippi River and.the Louisiana Purchase and subsequent westward movement of American explorers and pioneers.In its initial form as a national memorial, it was established in 1935 to commemorate: Louis, Missouri, near the starting point of the Lewis and Clark Expedition. Gateway Arch National Park is an American national park located in St. Mississippi River between Washington and Poplar Sts., St.
