Troopers say a 2004 Ford Ranger pickup truck was traveling westbound on the highway when it left the roadway and landed in the adjacent Bonaparte Creek.
Deputies say a car driven by 23-year-old Mateo Villa-Morales was traveling at a high rate of speed on SR 150 when it crashed head-on into pickup truck.
Troopers say the teenager was traveling southbound at about 8:15 when he lost control on a curve, causing the car to overturn and come to a rest on its top.