Coordinates: 35°31′28.56″N 104°34′20.20″W / 35.5246000°N 104.5722778°W
Trementina Base is the popular designation for a property of the Scientology-affiliated Church of Spiritual Technology (CST) near Trementina, New Mexico.
According to the CST, an entity formed to manage the Church of Scientology's copyright affairs, the purpose of the base is to provide storage space for an archiving project to preserve Scientology founder L. Ron Hubbard's writings, films and recordings for future generations. Hubbard's texts have been engraved on stainless steel tablets and encased in titanium capsules underground. The project began in the late 1980s.
The Church of Scientology protects Hubbard’s writings with “extraordinary zeal.” Copies of Hubbard's text are preserved and hidden behind fences, in deep vaults, guarded by tight security. The underground compound “stands as a symbol of the timelessness of Hubbard’s texts and as a three-dimensional manifestation of the ‘purity of Hubbard’s legacy.”
The base includes a number of dwellings and the archives themselves, the latter in a network of underground tunnels. The base also has its own private, concrete airstrip, the San Miguel Ranch Airport (NM53).
The property history of Trementina Base is complex. The Federal Register shows that CST has owned two properties in the same area at different times. The one they originally built the underground vault on, between 1986 and 1992.