942 resultados para Emerald mines and mining


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First edition, September 1916. cf. verso of t.-p.

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This report includes the results of geological investigation of a small area in the northern part of the Argenta mining district. Approximately two square miles were mapped. The underground working of the three mines only were accessible: the Goldfinch. Golden Era, and Mayday mines.

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Includes bibliographical references and index.