Does anyone know what on earth these strange lines are in Argentina? In places it looks like some kind of military bombing practive but then in other areas there are just geometric patterns. Very strange. Update: So it looks like the grid pattern in the first image is the damage left from doing a seismic survey of the area, probably for oil. The strange network of lines in the second image is just the roads inbetween hundreds of oil wells. Thanks: Patrick Martin & Dobermann35.