No, not a secret government base this is an array antenna part of the VLA (Very Large Array) located nearest the town of Magdalena, New Mexico. For 5 hours of driving time at an average of 80mph, there is no cellphone coverage. Driving west from Datil, NM to Magdalena, NM. Cellphone signals are restricted in a large area around the VLA because this would cause noise to appear in the images they get from space.