Craters of the Moon National Monument, located in Southern Idaho, was established as a national monument in May 1929. It comprises 80 square miles of extinct volcano craters and lava rivers, and is so named because the general appearance of the area resembles the surface of the moon as seen through a telescope.

Included in this series are several small tourist information pamphlets describing the lava formations and geological origins of the area and one giving the Indian legend regarding the formation of the craters. The typescripts of several drafts of C.A. Bottolfsen's article "Vulcan's stronghold" are included as well as replies to an invitation to attend the 1961 opening issued by the Arco Chamber of Commerce to various dignitaries.