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 Site.
Oppenheimer and Groves at Trinity Test Site
J. Robert Oppenheimer and Gen. Leslie Groves at the Trinity Test Site.
Hanford B Reactor
The B Reactor, located along the Columbia River in Washington, was the world’s first full scale nuclear reactor.
Hanford Hike Through Time
A hike with a Hanford park ranger can lead to new insights and perspectives of the local area.
Los Alamos Slotin Building
Historic structures endure at Los Alamos, preserving the legacies and untold stories of this important chapter in world history.
Los Alamos Ashley Pond Walk
Park rangers engage visitors in several locations across the Los Alamos area.
Oak Ridge X-10 Control Panel
Many locations at the Oak Ridge site can be accessed through guided tours coordinated by the US Department of Energy.
Oak Ridge Family Fun
An outing with Oak Ridge park rangers is fun for the whole family.
