Colorado gold mine tour guide who died in accident was once “Billy Cub” mascot outside Wrigley Field CBS ChicagoElevator door was ‘broken’ during Colorado mine tour accident that killed 1 and trapped 12 The Associated PressMan who died in ‘tragic accident’ at Colorado gold mine tourist attraction is named Sky News“It was uncomfortable but we were never panicked or afraid” Woman who was stuck underground in Colorado mine recounts moments trapped KKTV1 killed, dozens rescued after mine equipment malfunction near Cripple Creek FOX 31 Denver