Gateway Arch National Park Missouri St Louis Retro Key Ring

The Arch in St Louis reflects off the water in Gateway Arch National Park. Gateway Arch National Park, located in St. Louis, Missouri, was established as a national park in 2018, though the iconic Gateway Arch was completed in 1965 as a monument to westward expansion. The park’s centerpiece is the 630-foot-tall stainless steel Gateway Arch, the tallest man-made monument in the United States, offering stunning views from its observation deck. Visitors can also explore the Museum at the Gateway Arch, which delves into the history of westward expansion, and enjoy scenic walks along the Mississippi Riverfront.