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Gateway Arch National Park

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Gateway Arch National Park is located in St. Louis, Missouri, United States. The arch is located on the banks of the Mississippi River. The park covers an area of .14 square miles (.36 sq km) making it the smallest national park in the United States National Park Service.

Although it would be more appropriately recognized as a National Historic Site, it has been added to the park system as a National Park.  It has been registered as a national historic site as well.

It was originally named the Jefferson National Expansion Memorial before being changed to the Gateway Arch National Park.  It has almost always been affectionately referred to as the “Gateway to the West,” and served as a memorial to the men who created the opportunity and forged through making expansion into the western territory a reality.

The arch was constructed between the onset of 1963 through the near end of 1965.  It would finally open to the public in June of the year 1967.  

A passenger tram takes visitors up to an observation deck located at the top of the arch.  Visitors can take short walks around the top looking out over the Mississippi River as well as the Capitol Building and the city of St. Louis.

The observation area measures 65 feet (20 m) long and 7 feet (2.1 m) wide.  The observation room will hold approximately 150-165 people.  The lookout allows visitors to see 30 miles (48 km) in both directions.

Although the primary way up is through the two trams accessible from either leg of the arch, there is also a 1,076-step staircase and a 12-passenger elevator.  The staircase is only used in cases of emergencies.

The park also includes the Old Courthouse which is the location where the renowned Dred Scott Decision was held in 1857. The arch further symbolizes the meaning and freedom behind the famous case.

One of the most picturesque scenes related to the arch occurs in the spring when the cherry trees blossom.  The new green life of the spring along with the blossoms of the trees combine with the arch to create one of the most beautiful landscapes that involve the arch.


The Memorial Gateway Arch is the focal attraction of the park and the reason that people visit the national park.

Gateway Arch

The Gateway Arch stands 630 feet (192 m) into the air and has the distinction of being the world’s tallest arch.

It is also the tallest monument in the Western Hemisphere, the tallest accessible building in the state of Missouri where it is located, the tallest memorial in the United States, and the tallest steel monument in the world.

Both sides of the arch are grounded in 25,980 short tons of concrete measuring 44 feet (13 m) thick and 60 feet (18 m) deep.  Twenty feet (6.1 m) is further grounded in bedrock.  The arch can actually sway 18 inches (45 cm) in either direction.

Gateway Arch National Park Trails

Gateway Arch National Park is known for its history and vision, but it is not known for hiking trails.  For all practical purposes, walking around the national park occurs on paved sidewalks that travel around the arch.

Gateway Arch Highlights

  • Gateway Arch
  • Old Courthouse

Park Map