What is an example of an indigenous religion?

Indigenous religions are the religions of the indigenous peoples of an area and that could include native american shaministic and earth centered belief systems or the beliefs of any aboriginal people anywhere in the world. There is not a lot of recorded information about most of them in their original forms because most of the cultures where they were practiced did not have written language and their cultures were overwhelmed by invading cultures which were more aggressive and advanced and so the original belief systems were replaced by those of the conquering culture.