Places of the Manhattan Project

Black and white photo of a large wooden lodge with dozens of people on the porch and in the yard.
Fuller Lodge in Los Alamos, 1942.



Manhattan Project National Historical Park is located in the Manhattan Project’s three main centers of operation: Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee. These sites worked together to develop the world’s first atomic bombs during World War II. Numerous smaller sites, including ones in the US, Canada, and Africa, also played a pivotal role in research and production. Yet the Manhattan Project culminated on the other side of the Pacific Ocean. In August of 1945, the US dropped atomic bombs on Hiroshima and Nagasaki, Japan during the waning days of World War II, leading to more than 200,000 deaths by the end of 1945. Click on the places below to start exploring the Manhattan Project across the country and around the world.


Places within the Park

Find out more about a Manhattan Project site in Hanford, Washington
Hanford, Washington

Learn about the massive plutonium production complex at Hanford and the role of the local communities (now the Tri-Cities).

A color of three men standing on a stage in front of a log building.
Los Alamos, New Mexico

Travel back in time to a secret weapons research laboratory atop a mesa with stunning views of mountains and the high desert.

A black and white photo of a large white building with two people walking toward it.
Oak Ridge, Tennessee

Discover the secret community of Oak Ridge and its uranium-enriching facilities among the rolling hills of Eastern Tennessee.


Places Outside the Park

A black and white photo of a lattice-like tower with a sphere inside.
Trinity Site

Learn about a quiet, unassuming spot in the New Mexico desert that thundered as the nuclear age began.

Black and white photo of several people on a busy Japanese street.

Learn about the effects of the atomic bombings on the thriving communities of Hiroshima and Nagasaki, Japan.

Black and white photo of a gothic style university building.
Other Places

Venture beyond Hanford, Los Alamos, and Oak Ridge to explore numerous places across the globe that contributed to the Manhattan Project.



Last updated: February 21, 2024

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Contact Info

Mailing Address:

Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
P.O. Box 25287

Denver, CO 80225-0287


Hanford: 509.376.1647
Los Alamos: 505.661.6277
Oak Ridge: 865.482.1942

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