Plan Your Visit

Three communities, many placesA red, blue and white arched logo.

The Manhattan Project National Historical Park has a visitor center in the three main communities of the Manhattan Project: Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee. All three communities are designated as American World War II Heritage Cities to honor the contributions of these communities and their citizens who stepped into the workforce to support America's war effort during World War II.

Community-based experience

Our park is not a traditional park where you drive through an entrance gate into the park. Instead, you drive into our communities where you can explore the park visitor centers, historic sites, museums, points of interest, and so much more. Our park works with community partners to provide a variety of places that collectively share the story of the Manhattan Project.

Park mobile app

Our mobile app serves as a gateway into our park and into each community. Take a self-guided tour or pick and choose your own adventures. Download the app today.


Choose a community

An illustration of a US map with three sites Hanford, WA, Los Alamos, NM and Oak Ridge, TN. There are arrows going from Oak Ridge to Los Alamos and Hanford to Oak Ridge.


  • Hanford, Washington: Nuclear reactors at Hanford produced plutonium under the watchful eye of scientists and engineers.

  • Los Alamos, New Mexico: Leading scientists of the day convened in Los Alamos to design and build the atomic bombs.

  • Oak Ridge, Tennessee: Facilities tucked among the rolling hills of East Tennessee produced enriched uranium and housed the Manhattan Project headquarters.



Park Locations

Manhattan Project NHP has three locations across the country including Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee.


Last updated: November 16, 2023

Park footer

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

Contact Us