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Ventilating methods and safety measures used in the temporary ventilation of the King Solomon tunnel, Frisco, Summit County, Colo.
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Published Year
1950-1959 (1)
Subject
Abandoned mines--Colorado (1)
Mine ventilation (1) *
Tunnels--Colorado (1)
Author
Bolmer, R. L. (1) *
Fritts, G. B. (1)
