text: First off, cameras at the time were not as advanced as they are today. The cameras of the day would "distort the image and it would only capture the major features of the butte or mesa. The most recent image taken of the "Face on Mars" in 2001 looks very different from the original image taken in 1976. If there was a actual structure left by aliens, modern cameras would be able to see it. The the more modern cameras of today are able to see the more defining features of a object.