text: The last piece of evidence that shows that aliens didn't make the Face is when the text says, "What the picture actually shows is the Martian equivalent of a butte or mesa-landforms common around the American West. 'It reminds me most of Middle Butte in the Snake River Plain of Idaho,' says Gavin. 'That's a lava dome that takes the form of an isolated mesa about the same height as the Face on Mars.'" Many scientists would let the public know if they were any signs of aliens making the Face to keep us informed so the people wouldn't constantly be thinking and talking about it every day.