Explore the Manhattan Project National Historical Park at Hanford
The U.S. Department of Energy (DOE) has suspended B Reactor tours for the 2025 season due to major construction projects planned at the Hanford Site.
Pre-Manhattan Project Historical Site Tours Continue
The Manhattan Project National Historical Park will continue to offer Pre-Manhattan Project Historical Sites Tours beginning in April 2025. These tours are free, open to all ages, and provide valuable insight into the region’s unique and complex past.
Click here to view available tour dates and register
About the Manhattan Project National Historical Park at Hanford
Hanford was one of the key sites of the Manhattan Project during World War II. Over 50,000 people were employed to build a massive industrial complex that produced plutonium for the first atomic bombs.
The park has traditionally offered two guided tours:
- B Reactor National Historic Landmark — the world’s first full-scale nuclear production reactor (currently suspended in 2025)
- Pre-Manhattan Project Sites — exploring life and industry in the Columbia Basin before the war
Need Help Planning a Visit?
Visitors seeking assistance with tour registration or requesting accommodations — including wheelchair transportation or American Sign Language interpretation — may contact the Manhattan Project National Historical Park visitor center:
2000 Logston Boulevard, Richland, WA
(509) 376-1647
