Deadly Colorado gold mine malfunction deemed 'operator error,' sheriff says
An October elevator malfunction in a Colorado gold mine that killed a tour guide and stranded nearly two dozen people ...
Operator error blamed for elevator incident that led to death of guide at former Colorado gold mine
Authorities say an incident involving an elevator at a former Colorado gold mine that led to the death of a tour guide and trapped a group of tourists for hours last year was caused by “operator error ...