U.S. Army · United States 
Joseph Ardian Ynostroza
1989
Joseph A. Ynostroza served the U.S. Army for 3 years. Joseph served in the Vietnam War and the Cold War.
How He Died
Manner
Accident
Cause
Multiple traumatic injuries
What Happened
Trooper Joseph Ynostroza was killed in an automobile crash on U.S. Route 160 near Alamosa while en route to Cortez from Denver. During the drive, his patrol car veered into oncoming traffic and was struck head-on by a tractor-trailer. Although he was wearing his seat belt and his airbag deployed, the force of the impact was so severe it caused fatal injuries. Trooper Ynostroza had served with the Colorado State Patrol for 16 years. He was survived by his wife and three children. His son later went on to serve in the same agency.
Survivors
He was survived by his wife and three children.
Service Record
U.S. Army
1964 – 1967
Conflicts
Vietnam War
Cold War
Also Served
Colorado State Patrol
Trooper
In Our Keeping
Permanent identifier
neuraspine_01krbxtngabjk9e9wa6h5zs9k7
Record added
August 2, 2026
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Last updated
August 2, 2026
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