The Museum occupies a restored log and stone cottage that once served as the infirmary for the Los Alamos
Ranch School for Boys. The museum details area history, Newspaper articles, military uniforms, photographs, recording bomb testing and changing exhibits are displayed. A Tiwa ruin dating from the 13th century and a relocated homesteader's cabin are other highlights. Documenting the history of the Pajarito Plateau, with special emphasis on the Manhatten Project, the museum displays Anasazi ax heads, needles, potsherds, and arrowheads, as well as various items from the days Los Alamos was the "Secret City". Pamphlets for self-guiding tours of the area are available.
Closed Jan. 1, Easter, Thanksgiving and Dec. 25.