Hanford: Visitor Centers

Single-level stone building with thick red-orange roof and window trim, double glass doors, paved sidewalk out front, sign with text, “Manhattan Project National Historical Park.”
Look for the red roof of the visitor center as you drive along Hwy 240.

NPS

 

Visit Hanford

Start with 2 Visitor Centers in the Tri-Cities

The Hanford Engineer Works produced plutonium at a roughly 600-square-mile (1554-square-km) site along the Columbia River in Washington state for the Manhattan Project during World War II. Workers at the Hanford Site constructed and operated the world’s first nuclear production reactors that produced the plutonium used in the Trinity Test and in the atomic bomb dropped on Nagasaki, Japan, on August 9, 1945.

The Tri-Cities has two visitor centers where you can start your Manhattan Project National Historical Park experience: 

  • Hanford Visitor Center with Manhattan Project National Historical Park
  • Tri-Cities Visitor Center 

Visit the US Department of Energy website for updates on their guided tours and visitor center hours at the Hanford Unit. 

 

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Last updated: September 25, 2024

Contact Info

Mailing Address:

National Park Service, Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
One Denver Federal Center, Building 50
Denver, CO 80225-0287

Phone:

Hanford: 509.376.1647
Los Alamos: 505.661.6277
Oak Ridge: 865.482.1942

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