ERDA, Tooele County — A 7-year-old boy suffered serious head trauma after falling out of a winow Saturday.

The boy was watching his father mow the grass from the window of his house on Rose Springs Road about 6:30 p.m., when he apparently fell through the screen and into the window well, about a 10- to 12-foot drop, according to the Tooele County Sheriff's Office.

The boy was flown by medical helicopter to Primary Children's Medical Center.