Someone posted that it never made it to home video.
As of recently, the film was put out on Blu Ray by Mill Creek Entertainment in a Double Feature or Double Bill with Nightwing (1979). It is easily available on Amazon or eBay.
The Westernized grandson of a shaman returns to the wilderness to learn more about his Native American heritage. When he encounters powerful evil spirits, he enlists the aid of his lover and a local chief to stop the spirits.