• Looking up at the Gateway Arch

    Jefferson

    National Expansion Memorial Missouri

There are park alerts in effect.
show Alerts »

  • Summer Hours

    Extended Summer Hours for Jefferson National Expansion Memorial starting Memorial Day weekend, Saturday, May 25, 2013, through Labor Day, September 2, 2013, the Gateway Arch hours are 8:00 a.m. to 10:00 p.m. More »

Management

Learn more about how our park works from our management documents located in this section. Click on the links above to see jobs available at the park, to learn more about our park partners and to learn about our plans for the future of the park.

Click here to go to the NPS Greenbook, information about the National Park Service budget.

Click here to go to learn more about NPS management policies. Here you will find the Management Policies Book, Director's Orders, Executive Orders, Laws and Regulations.

Did You Know?

Dinosaur cartoon

On September 10, 1804 on Cedar Island, in South Dakota, William Clark discovered the fossilized remains of the ribs, backbone and teeth of a plesiosaur. Plesiosaurs were animals who lived at the same time as the dinosaurs, but swam rather than walking on land. Clark thought it was a giant fish bone! More...