I thought you quit?
There ARE a lot of native american artifacts in the background of the film, so there could be something to that... I would imagine Kubrick had a lot of things on his mind...
Although I am thoroughly SICK of the "indian burial ground" concept in fiction... the population of north america doesn't seem to find native americans intimidating or powerful in any way, except in the creation of a SCARY burial ground, which I think is extremely odd.