In the early evening of 18 March 1950 rancher Wilfredo Arévalo witnessed the landing of a flying saucer while a second companion saucer hovered overhead, as if guarding the first. Arévalo walked to within 400 feet (120 metres) of the craft noticing an intense smell “like burning benzene”. The craft was giving off a blue vapour through which Arévalo could see that the surface of it seemed to be made of something like aluminium.
Even when it landed, part of the disc remained revolving “like a gramophone record”. In the glass cabin Arévalo could see four tall, well-shaped men dressed in something like cellophane.
The men shone a search light at Arévalo then the craft took off, leaving an area of burnt grass later confirmed by other ranchers.