Utah Highway Patrol troopers were first notified about the collision at 10:38.
According to a report from the Department of Public Safety, a Chevrolet Suburban was traveling northeast toward Garden City when the driver came around a curve near mile marker 495. The driver lost control of the Suburban and slid into the path of a GMC Sierra.
The driver of the Sierra attempted to move the vehicle to the right, against a metal guardrail, but the Suburban struck the Sierra head-on.
Becky L. Green, 58, was a passenger in the Sierra and died at the scene. Green was not wearing a seatbelt, the DPS report said, because she had a medical condition that made wearing a seatbelt difficult.
Both drivers sustained injuries. Their names and the nature of their injuries were not disclosed.