National Historical Park · NM, TN, WA

The Manhattan Project is one of the most transformative events of the 20th century. It ushered in the nuclear age with the development of the world’s first atomic bombs. Most of this development took place in three secret communities located in Hanford, WA, Los Alamos, NM and Oak Ridge, TN. Today, you can visit these three sites that make up Manhattan Project National Historical Park.
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The Hanford Visitor Center is open Monday - Friday 9:00 AM-4:00 PM. Access to the Hanford B Reactor is suspended due to major construction projects. To check for updates about these tours, visit http://manhattanprojectbreactor.hanford.gov/. Separate tours of the Historic Sites are offered beginning in May. For more information about these tours, visit http://tours.hanford.gov/HistoricTours/.
This driving tour focuses on the local Black life during the Manhattan Project and the civil rights struggle that followed in the Tri-Cities.
The Manhattan Project transformed Richland from a farming village of about 250 people to a planned garden suburb of 15,000 Hanford workers and their families. Follow in their footsteps and see what life was like in Richland during World War II
Hike to the top of Candy Mountain to see the Hanford Site and the Tri-Cities. Along the way learn about the Ice Age Floods that shaped the landscape.
The homes along Bathtub Row were originally built for the staff of the Los Alamos Ranch School. When the Manhattan Project arrived in Los Alamos in 1943, school staff moved out and project staff moved into these homes. Bathtubs were considered a luxury in homes constructed for the Manhattan Project. One night at a party, Alice Kimball Smith referred to the occupants living on “Bathtub Row,” giving the homes their unique name. Take a walk down Bathtub Row to learn about these homes and the project scientist
No entrance fee.
While there is currently no public access to the Department of Energy facilities in Los Alamos, walking tours are available in the town of Los Alamos. The Los Alamos Visitor Center is open Friday through Monday, 10 am to 3 pm.
The Oak Ridge Visitor Center is located within the Children's Museum of Oak Ridge. Here you are able to speak with National Park Service rangers, watch a short film on the Manhattan Project, and get literature on Manhattan Project-related historic sites throughout Oak Ridge. Visitor Center services are limited on Sundays, but brochures, maps, and site films are available.
Hours are retrieved from the National Park Service and can change without notice — check the official site before you go.
Explore the history of Los Alamos on this short walking tour and learn more about the different people who have called this area home.
Want to visit the historical buildings that were used in the making of the Oppenheimer movie? Then you have come to the right place! Filming of Oppenheimer took place in and around Los Alamos in 2022. Several Manhattan Project era buildings were utilized in the making of the movie including the Oppenheimer house. Check out the film locations on this tour in person, and see if you can recognize the locations when viewing the movie.
Explore the sites in Los Alamos that played an important role in the town's Ranch School era, before the Manhattan Project came to town.
The city of Los Alamos was constructed on land that has a long history of human use. Follow along this tour to learn some of the history of the Ancestral Pueblo people that have always called this land home and discover untold stories and connections to the Manhattan Project. This tour is best completed as you travel from Santa Fe to Los Alamos and has locations within two National Park Service sites. An America the Beautiful Pass or park-specific passes are needed to explore all stops on this route.
Step back in time in downtown Oak Ridge as you discover the same shopping districts, lodging, recreation, and houses of worship that Manhattan Project workers and visitors would have enjoyed long ago.
Step back in time as you discover more places in Oak Ridge that Manhattan Project workers and residents would have visited for shopping, entertainment, and recreation long ago.
Explore the area that was once the Wheat community, a small rural community that existed for decades prior to the displacement of its citizens to make way for the Manhattan Project, specifically the K-25 Gaseous Diffusion Plant.
The City of Oak Ridge has something for kids of all ages to enjoy. From world-class museums to outdoor activities and attractions, every member of your family will enjoy a day in the secret city.
Walk in the footsteps of thousands of Manhattan Project employees as you imagine what it was like working in secrecy in the largest building in the world at the time.
Times are in the park’s local time. Golden hour is the sun within 6° above the horizon; blue hour, within 6° below.
Source: National Weather Service.