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Los Alamos History Museum

The Los Alamos Historical Society is committed to interpreting and promoting the history of the Pajarito Plateau. The Society manages the Los Alamos History Museum in the heart of downtown Los Alamos. The museum is a must-see for any visitor to Los Alamos, New Mexico who is interested in the ancient and recent history of Los Alamos.

Built as an infirmary in 1918 and later used as the guest cottage for Los Alamos Ranch School, the museum is in the oldest continually occupied structure in town. During the Manhattan Project (1943 to 1947), the cottage continued to serve as guest quarters, notably for General Leslie R. Groves, commander of the Manhattan Engineer District, whose office and residence were in Washington, D.C.

Now it serves as an award-winning, comprehensive history museum which presents our world-changing and varied history. A book and gift shop fills a former bedroom.


The Museum tells the stories of those who were to arrive on the Plateau. Visitors experience where great decisions were and still are being made

Visiting the Los Alamos History Museum can take up to 45 minutes – depending on the level of detail you are interested in.  The museum has award-winning exhibits on regional geology, anthropology, the Los Alamos Ranch School founded by Ashley Pond, and the Manhattan Project.


Docent guided tours of the Los Alamos Historic District are available Mondays, Fridays, and Saturdays at 11 a.m. The tour includes a visit inside the homestead-era Romero cabin, information on a nearby Ancestral Pueblo site, stories about the giants of 20th century physics, and how Bathtub Row got its name. Tickets are available at the Los Alamos History Museum Shop and are $10 for ages 18 and up, $5 ages 13-17, and free for children under 12 with a ticketed adult.

The museum is self-guided. Tours are available on request for school groups and other large groups. Contact the Museum Educator at 505-695-5251 to schedule a tour.


From searching for pottery shards to grinding corn the Los Alamos History Museum offers activities for children of all ages.

Winter Hours: 

Monday – Friday: 10:00am – 4:00pm
Saturday – Sunday: 11:00am – 4:00pm

Summer Hours: 

Monday – Friday: 9:30am– 4:30pm
Saturday – Sunday: 11:00am – 4:00pm

Docent guided tours of the Los Alamos Historic District are available Mondays, Fridays, and Saturdays at 11 a.m.

Photos: Los Alamos History Museum | Leslie E. Bucklin

What a great asset to the community! The history museum covers everything from the geology to archeology to ancestral pueblos to farming the mesas to the ranch school, Manhattan project and today in lovely, little vignettes and displays. It’s great and entertaining for kids and adults. Hands-on exhibits and a great little bookstore will make your visit extra worthwhile. It’s worth a stop!

Joan from Wisconsin

Take the Historic Walking Tour

Become a time traveler on this walking tour which takes you from ancestral pueblo dwellings to a homesteader’s cabin, to the very spot where the first atomic bomb components were assembled.

The tour can be taken at your own pace, but try to set aside time to enjoy the museums, shopping, and restaurants along your way.