Maps

Manhattan Project National Historical Park includes three sites that played crucial roles in the effort to develop atomic weapons: Hanford, Washington; Los Alamos, New Mexico; and Oak Ridge, Tennessee.
 

Last updated: July 1, 2021

Contact the Park

Mailing Address:

Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
P.O. Box 25287
Denver, CO 80225-0287

Phone:

(505) 661-6277
This phone number is for the Los Alamos Unit Visitor Center. You may also contact the Oak Ridge Unit Visitor Center at (865) 482-1942, or the Hanford Unit Visitor Center at (509) 376-1647.

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