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Gold from
Columbus Mine (Sir Roderik Dhu), Lead District, Lawrence Co., South Dakota, USA

Description
Quality of samples:	not specified / average specimens
Confirmation
Validity:	Believed Valid
References
References:	U.S. Geological Survey, 2005, Mineral Resources Data System: U.S. Geological Survey, Reston, Virginia.; Emmons and Becker (1885) Statistics and Technology of the precious Metals. Census reports Tenth census. June 1, 1880, Volume 13 By United States. Census office. 10th census, 1880, United States. Census Office
Data
Mineral Data:	Click here to view Gold data
Locality Data:	Click here to view Columbus Mine (Sir Roderik Dhu), Lead District, Lawrence Co., South Dakota, USA

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