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Blue Jay fluorspar mining (13)

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Mine name Blue Jay fluorspar mining
State Colorado
County Boulder
Mineral Fluorspar
Author Burchard, E.F.
Openings and dumps made in connection with mining fluorspar on Violet Ray vein of Blue Jay properties, Jamestown. Boulder County, Colorado. 1926.
Caption Openings and dumps made in connection with mining fluorspar on Violet Ray vein of Blue Jay properties, Jamestown. Boulder County, Colorado. 1926.