Basic Information

Manhattan Project National Historical Park is composed of the three principal locations where work was completed as part of the Manhattan Project: Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee. Click on the images below to go to each site's planning page. Scroll down for basic info on each site.

 
Hanford, Washington
Color photo of an industrial looking building with sun setting.
A secret factory that made plutonium.
Los Alamos, New Mexico
A white building with a big sign that reads, "Los Alamos Project Main Gate"
A covert lab that built the bombs.
Oak Ridge, Tennessee
A small white chapel with a tall steeple on a grassy hill with trees behind it and an historical mar
A hidden complex that enriched uranium.
 

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Last updated: April 17, 2025

Contact Info

Mailing Address:

National Park Service, Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
P.O. Box 25287
Denver, CO 80225-0287

Phone:

Hanford: 509.376.1647
Los Alamos: 505.661.6277
Oak Ridge: 865.482.1942

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