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Subject
Mining
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Subject
Mineral resources
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Institution
Michigan
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Year
1891
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1 entry found
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1. Map of part of the county of Ottawa showing the phosphate district; The Dept.of Crown Lands.
1891. Ontario. Department of Crown Lands. 1 map: col.; 92 x 47 cm, folded to 27 x 12 cm This map is in the public domain. Please attribute access and use of this digitized map to the Stephe...