Interesting ! Why would the indigenous people make something like this which was over 2 miles long, and could only be seen from an airplane ? How would they know to make it so perfectly ? What was it for ? Are there more of these in the deserts made by the indigenous people there ? The ones which are in South America seems to have been made hundreds of years ago (maybe thousands- no one knows for sure), but they were made by an early advanced civilization , and not wild aborigines like the history shows the Australian bush people were. Please elaborate !