Browse TRAIL Inventories

Electronic mine-shaft signal system at Magma Copper Co., Superior, Ariz.

Safety in blasting at Ajo, Ariz.

Safety practices at United Verde Mine, Phelps Dodge Corp., Jerome, Ariz.

Electrical blasting at Miami Copper Co., Miami, Ariz.

Central mine rescue station, Globe-Miami district, mine rescue and first-aid association, Globe Ariz.


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