Leadville, Colorado - A display of a canary in a coal mine at the National Mining Hall of Fame and Museum.

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Leadville, Colorado - A display of a canary in a coal mine at the National Mining Hall of Fame and Museum. If the canary died, miners knew that poisonous gas was present.

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Size: 4608px × 3072px
Location: Leadville, Colorado USA
Photo credit: © Jim West / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: america, canary, coal, colorado, danger, early, fame, hall, horizontal, leadville, mining, mountains, museum, national, occupational, rocky, safety, states, united, usa, warning, workplace