Mine detail: Grand Rapids Gypsum Mine #3

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Location

Lat / long:

42.94721, -85.72635

Resource(N)

Primary:

Gypsum-Anhydrite

Production

Operation type:	Underground
Development status:	Past Producer

Geology

References

MAS	260810055
DEP	10184150
Reference	STONE R W, 1920 USGS BULL697, P125
Reporter	Eastern Field Operations Center (EFOC)