The Jefferson County Sheriff's Office is investigating a fatal head-on collision.Deputies were called to Highway 79 near McCombs Street in eastern Jefferson County just before 10 a.m. Wednesday.Authorities said Randy Lee Lowe, 67, of Trafford, was driving a 2007 Buick Terraza traveling northbound but crossed into the southbound lane hitting a 2012 Nissan Frontier head-on.Lowe was pronounced dead at the scene. The driver of the Nissan was taken to a local hospital with non-life-threatening injuries.The investigation continues.