File:Aztec Mine.jpg
"The Aztec Mine, Baldy, New Mexico". American Institute of Mining Engineers Transactions. Vol 68 (1923). pg. 273.
https://repository.arizona.edu/bitstream/handle/10150/551819/AZU_TD_BOX249_E9791_1965_96.pdf?sequence=1
Author
Chase, Charles A and Muir, Douglas
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