Mine detail: Dark Horse-Optimo No.1 Mine

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Location

Lat / long:

42.91751, -90.27261

Resource(M)

Tertiary:	Lead, Zinc
Discovery year:	1906

Production

Operation type:	Underground
Development status:	Past Producer
First production started:	1906

Geology

References

MAS	550490035
DEP	10156470
Reporter	Eastern Field Operations Center (EFOC)