Hidden in Plain Sight

During the Cold War, a vast arsenal of nuclear missiles were placed in the Great Plains. Hidden in plain sight, for thirty years 1,000 missiles were kept on constant alert; hundreds remain today. The Minuteman Missile remains an iconic weapon in the American nuclear arsenal. It holds the power to destroy civilization, but is meant as a nuclear deterrent to maintain peace and prevent war. Read More

View down a round silo with a missile

Visit a Nuclear Missile at Delta-09

The Delta-09 missile silo allows a rare opportunity to view a nuclear missile once on constant alert during the Cold War.

An American flag flys in front of a building inside a high fence

Visiting Delta-01

Inside the security of a high fence, the Delta-01 facility housed ten Air Force personnel and directly controlled ten missiles.

Screenshot of virtual tour showing an underground space

Virtual Tours

Visit the front line of the Cold War from the comfort of your digital device. Go behind the scenes inside Delta-01 and Delta-09.

Metal warning sign against a white background


The park preserves unique artifacts and archives that represent the Minuteman Missile System and the Cold War.

Last updated: April 6, 2020

Contact the Park

Mailing Address:

24545 Cottonwood Road
Philip, SD 57567


(605) 433-5552

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