These were two circular marks of 3.30 m. diameter by 0.30 m. wide, each in the form of 8, wherein the grass was burned.
Among the tracks, the grass was charred to a depth of 7-10 cm.
Also found in the area, carbonaceous residues and a white powder.
Days before finding footprints, a neighbor of the Lopez family, Mr. Juan Jeronimo Perea, administrator of the estate "El Trebol", accompanied by his wife and children, said he had seen an aerial object strongly illuminated, egg-shaped, sized "three times the Moon", flying in complete silence.
The witness said the artefact landed in the place where the footprints appeared. The police investigated the footprints on the ground and confirmed that something heavy had landed in the area,and that at least required some 2,000 degrees Celsius to burn the grass that way to until root.