honestly, the only fair thing to do is point you towards claire diane's review. truth.
not so much about the movie itself but...
without taking into account how the eerieness of the wide open spaces and native american folkolore seem so suited to haunting/ed planes of existence, this last segment shows in its minimal setting how the western/horror hybrid should be done way more often. and with better results overall.
wonder why western athologies aren't a thing. makes perfect sense.