Abdulmajeed H. Abdulmajeed, 19, was driving north in a 1996 Mazda 646 sedan when the car left the road near Milepost 12 at about 4:51 p.m. Wednesday, according to the Idaho State Police.
The vehicle went down an embankment but did not roll, police said. The accident took place near Lucky Peak.
Abdulmajeed was taken by ambulance to Saint Alphonsus Regional Medical Center in Boise.
The crash remains under investigation.