Gary A. David is an independent researcher and author who has been intrigued by the American Southwest since his initial trip there in 1987. The following year he lived for about six months in northern New Mexico, where he studied archaeological ruins and rock art. In 1994 he moved to Arizona and began an intensive study of the ancestral Pueblo People (sometimes incorrectly referred to as the Anasazi) and their descendants the Hopi.
In 2006 after more than a decade of fieldwork and scholarly inquiry, his nonfiction book The Orion Zone: Ancient Star Cites of the American Southwest was published. This volume describes a pattern of Hopi villages and ruin sites that precisely mirrors Orion, with an ancient site corresponding to each major star in the constellation.