Mine detail: Unknown

Previously called 'Big Horn River Area'

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Location

Lat / long: 44.56353, -108.18762

Resource(N)

Primary: Gypsum-Anhydrite

Production

Operation type: Surface
Development status: Past Producer

Geology

References

MAS560030263
DEP10181366
Reference{Deposit:: GYPSUM HAS BEEN MINED FROM 8 SEPERATE BEDS 1-1.5 FT THICK IN}{Deposit:: THE CHUGWATER FM. A MILL WAS BUILT IN 1916 TO MAKE STUCCO}{Deposit:: BLOCKS}{Deposit:: LOCATED IN STUCCO?}{Deposit:: ANAYLSIS CAO= 33.74% SO3=43.9% SIO2=.01% MN=.98% FE2O3+AL2O3}{Deposit:: =0.17% H2O = 19.50%}{Deposit:: WYO GEOL SURV BULL #50 1966 P 98}
ReporterSouth Dakota School of Mines