The wilderness of El Infiernillo is among the twelve most mentioned places where UFO event play out regularly. It is located in Northwestern Tucumán at 3042 meters above sea level in the midst of the Valles Calchaquíes on Route No. 307, linking the provinces of Salta and Tucumán. The case histories have repeated with the same likeness and behavior: Lights that issue from the mountains, some of them pursuing vehicles, others that land in the middle of the road, etc. The question is the same that we ask about the other eleven similar sites in Argentina. What is there in that region that is so attractive to them? For the time, all we have are hypotheses. Let's examine some of the best-known cases of their time:

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