UPDATE: The Idaho State Police have identified the woman killed in a head-on crash north of Garwood Monday afternoon as 70-year-old Mikki J McGoldrick of Spokane.
Police say McGoldrick was driving on the highway when for an unknown reason she swerved into the oncoming lane and hit a pickup truck head-on. McGoldrick was pronounced dead at the scene.
The driver of the pickup truck received minor injuries.
Investigators are still trying to determine what happened, but they say speed and/or alcohol do not appear to be a factor.
The crash remains under investigation.