The marking is the logo of the Church of Spiritual Technology, Inc., a holding company of sorts for Scientologist L. Ron Hubbard's archives in a
vault in the desert nearby.
The Scientologists are known for some rather bizarre claims and behavior. Scratching the logo into the desert floor is supposed to be a "signpost"
for "alien scientologists" returning to Earth from space.
The circles/logo looks rather crude, IMO. Looks like something you can accomplish in an afternoon by dragging some chain link fence behind your
pick-up. That and a case of beer will yield similar results.
Did a little hunting and pecking - found the circles/logo if anyone wants to see it for themselves (using Google Earth, NASA Worldwind, or MSFT
Virtual Earth - or any GIS):
The logo is at: 35 31' 26.70" N 104 34' 30.14" W. About ten miles west of of the town of Trementina, new Mexico.