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Manhattan Project National Historical Park

A national park within a national lab

Welcome to MAPR at Los Alamos National Laboratory

The Manhattan Project National Historical Park (MAPR) is one of the nation’s newest parks. Established in 2015, MAPR comprises three distinct locations in Washington, Tennessee, and New Mexico. These communities led the effort to build a bomb to end World War II. Each one made incredible advances to the science, manufacturing, and engineering that ushered the globe into the “atomic age.” 

Read more from the National Park Service

Here in Los Alamos, New Mexico, about 30 landmarks are officially part of MAPR. Many of these places, like J. Robert Oppenheimer’s house, Ashley Pond, and Fuller Lodge, are publicly accessible. Other landmarks are “behind the fence” at Los Alamos National Laboratory. Because of their locations, these sites are only accessible to small groups a few times per year. 

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10 Years of MAPR

Manhattan Project National Historical Park is one of the nation’s newest national parks, established in 2015.

Our Mission

At MAPR, we strive to:

Preserve and protect, for the benefit of present and future generations, the nationally significant historic resources associated with the Manhattan Project. 

V Site
Before and after of V-site, where the Gadget detonated during the Trinity test was assembled. 

Enhance public access to the Park established under the Act consistent with protection of public safety, national security, and other aspects of the DOE’s mission.

Visitors at Battleshipo Bunker
Visitors learn about the Creutz test, an experiment conducted two days before Gadget was detonated at Trinity site. The Creutz test used a full-scale mock-up of Fat Man without the nuclear material.

Assist the DOE, communities, historical societies, and other interested organizations and individuals in efforts to preserve and protect the historically significant resources associated with the Manhattan Project.

Park Staff Aging Signage
Park staff assess aging signage on a historic trail in Los Alamos.

 

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