The time is now for Congress to designate three important historic sites that were key to the success of the Manhattan Project as a National Historical Park.  Send a letter now urging your member of Congress to support the Bipartisan bills to establish this National Park.

The Manhattan Project was a top-secret government operation during World War II charged with developing the atom bomb that ultimately ended the war and launched the Cold War era. Three laboratories — Los Alamos, New Mexico; Oak Ridge, Tennessee; and Hanford, Washington — are included in legislation for a new national park that would interpret the development of the technology that created the bomb as well as the contribution of scientists whose efforts created breakthroughs in chemotherapy, high-speed computer technology, genomics, and bioengineering.

Reach out to your Congressman today and help us support the designation of the Manhattan Project National Historical Park, and remember they need to hear from you!

Join us in calling for the creation of the Manhattan Project National Historical Park to ensure that this piece of our nation’s history is permanently protected and interpreted to enrich the understanding for current and future generations.

For more information about these sites and our work to preserve them, please visit our blog. Thank you!


  • Your Senators
  • Your Representative


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New registrants who take action will receive periodic updates and communications from the National Trust for Historic Preservation.


Support a Manhattan Project National Historical Park!

Dear [Congressperson],

[Your Name]
[Your Address]
[City, State ZIP]