Plan Your Visit

historic image of the entrance gate at the Los Alamos site

A visit to the Manhattan Project National Historical Park will be different from a visit to many other national parks. Many of the properties included in the park are located in areas that are still part of active DOE mission. Because of safety and security issues some facilities may not be immediately open to the public and others may only be visited on organized bus tours. The National Park Service and the Department of Energy are working together to safely expand access to the facilities included in the park.

Last updated: November 5, 2015

Contact the Park

Mailing Address:

Manhattan Project National Historical Park
c/o NPS Intermountain Regional Office
P.O. Box 25287

Denver, CO 80225-0287


(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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