Steamboat Springs Teresa Kistler, a 20-year-old Hayden resident, died in an automobile accident Sunday morning in De Beque Canyon.
Kistler worked as a pharmacy technician at Safeway in Steamboat Springs for the past two years and was on her way to California where she was planning to attend college this fall, said Irene Wilkinson, manager of Safeway.
"She was starting a whole new life," she said. "She was so sweet the sweetest girl."
Kistler was driving a Chevrolet Suburban east on Interstate 70, and lost control near mile marker 56, the Colorado State Patrol said.
According to the State Patrol report, the vehicle lost control, went off the right side of the road, rolled, hit the side of the canyon and continued to roll ejecting Kistler and passenger, Thomas Racan of Steamboat Springs.
Racan, 21, suffered minor abrasions and a ruptured spleen and was airlifted to St. Mary's Hospital.
No other vehicles were involved in the accident.
Kistler was pronounced dead at the scene.
The State Patrol said it does not believe alcohol was involved in the accident. Neither Kistler nor Racan were wearing their seatbelts.
A memorial service is planned for Kistler at 1 p.m. Saturday at the Kingdom Hall of Jehovah's Witnesses.