text: Lastly, another reason to prove that the unknown mask is just a natural landform. In paragraph 12 the author says what the picture actually shows is the martian equivalent of a butte or mesa- landforms common around the American West. Then says" Reminds him most of Middle Butte in the Snake River Plain of Idaho." Finally, Gavin also says "Thats a lava dome that takes the form of an isolated mesa about the same height as the face on Mars. " Which means they go through the same process to be created-landform.