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Mining engineering students at Big Five Tunnel
A group of students are standing at the entrance to the Big Five Tunnel, Idaho Springs, Colorado. Some of the men are holding mining tools.
Mining engineering students in a gypsum mine
Five mining engineering students are standing with surveying equipment inside a gypsum mine.
Mining engineering students at Big Five Tunnel
A group of students are standing at the entrance to the Big Five Tunnel, Idaho Springs, Colorado. Some of the men are holding mining tools.
Mining engineering students in a gypsum mine
Five mining engineering students are standing with surveying equipment inside a gypsum mine.
