The book's back cover notes that, “No other region in North America features the variety and intensity of unusual phenomena found in the world’s largest alpine valley. Since 1989, Christopher O’Brien has documented hundreds of . . . strange reports of UFOs, ghosts, sorcerers, crypto-creatures and cattle mutilations, as well as portal areas, secret underground bases, mystery choppers and covert military activity. This mysterious region at the top of North America has a higher incidence of UFO reports than any other part of the continent and is the publicized birthplace of the ‘cattle mutilation’ mystery." [ Visit Website ]