text: Some might believe that the so called "alien artifact" was lefted behind by aliens, but NASA unveiled an image of the Face and this is what they came up with. According to the caption of the image, it noted a "huge rock formation . . . which resembles a human head . . . formed by shadows giving the illusion of eyes, nose, annd mouth." This image was even compared to natural landforms found on Earth. According to the passage, the picture portrays the "Martian equivalent of a butte or mesa- landforms common around the American West. The passage also claims that the image reminds him of the "Middle Butte in the Snake River Plain of Idaho," and that the Face on Mars is about he same height of an isolated mesa- which is a landform.