The mystery of Marree Man

Yesterday I wrote about how nice it would be to take a vacation in Australia. As I talked about Kangaroos and how amazing they are and how cool it would be if I actually saw one in real life.
Well, I discovered something that I never knew about Australia. The Marree Man, an enormous man mad figure that know body knows the truth about. I was reading an article about it but everybody's opinions are different. Most of them are the same though. That's why I'm a bit confused about the story behind the Marree Man. Its written in Wikipedia that when the Marree man was discovered there was also a small jar with a letter, satellite picture, and an American flag. How can anybody explain this? Was it Americans that went there and created this figure without getting caught? Maybe someone knew about this and just put a flag, letter and picture close to the Marree Man. Who knows? But this story is too interesting to let go because the facts about the size and depth are unbelievable. You would need a huge team to get this done. Also in Wikipedia, its written that maybe the image was created from fire. The people could have burned the image into the ground. But if there were bulldozers, that means people would have been seen. What about all the fuel that was needed? All of these questions come together as answers disappear. If anyone has facts about the Marree Man feel free to leave any comments.

WHAT ARE YOUR THOUGHTS?