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Humboldt
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Name
Rutland Quarry
Unknown
Unknown
Humboldt Pit and Plant
Unknown
Unknown
Hodges Quarry and Mill
Erickson
Unknown
Unknown
Griffith Quarry
Unknown
Zeidler Pit
Unknown
Unknown
Peterson Pit
Frank Gotch State Park
Bradgate Pit
Bradgate Pit
Bradgate Quarry
Rutland Quarry and Mill
Foster Pit
Humboldt Pit
Humboldt Quarry
Hallett Pit
Unknown
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