Anybody have any idea what the purpose of the geoglyphs at sites like Trementina, NM might be? I've found three such glyphs which are the symbol for the Church of Spiritual Technology, two interlocked circles with diamonds in the center of each circle. There is the one pictured in New Mexico, one at Hubbard's former ranch at Creston, CA and another one near Petrolia, CA. Each one is supposed to be associated with underground vaults. The story I've read is that the vaults contain all of Hubbard's works etched into titanium or platinum or something to that effect. The glyphs are supposed to be signals to an advanced? alien? race after the apocalypse so they can find Hubbard's life work which will supposedly be preserved forever. Anybody confirm this? Know of any other geoglyphs?

(first post, sorry if wrong forum)