The arrowhead found by the character Cayce Mcbride was actually found not far from the location shot in the film. Just as in the story, it is called an "Adena" and is over 3500 years old.
The cabin were the film was shot is actually haunted, as well as the graveyard featured in the film.
The average temperature during filming was over 110 degrees with 100% humidity. The actor's sweat was real.
The ghost story told by the character Tyler Bennett is a true family ghost story.
The character Cayce Mcbride was named after the street which Dan Barrios grew up on in Clarksville Tennessee. The street was named after the famous Kentucky psychic Edgar Cayce. Mcbride was the last name of a childhood friend of Dan Barrios. Tyler Bennett was named after Army Sergeant First Class (Ret) Bennett, Dan's father's Army buddy. Kat was named after Cat, one of Dan's college fraternity brothers.