Contact Us

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.

• Planning a visit? Start with our Plan Your Visit page.
• Junior Ranger questions? Start with our Junior Ranger page.
• Press inquiries? Please see our Press Kit.
• General inquiries about Manhattan Project National Historical Park should be directed to the Main Office using the contact information below.
• Inquiries about a particular site, such as passport stamp requests, should be directed to that site using the contact information below.
• You can also email us for any of the above inquiries.

 

By Mail

Main Office

National Park Service, Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
One Denver Federal Center, Building 50
Denver, CO 80225-0287

Hanford Site

Manhattan Project National Historical Park
2000 Logston Blvd.
Richland, WA 99354

Los Alamos Site

Manhattan Project National Historical Park
PO Box 1110
Los Alamos, NM 87544

Oak Ridge Site

Manhattan Project National Historical Park
461 W. Outer Drive
Oak Ridge, TN 37830

By Phone

• Hanford Site: 509-376-1647
• Los Alamos Site: 505-661-6277
• Oak Ridge Site: 865-482-1942

Email us