Arizona · Yavapai County
Past Producer

Niagra Mine

Yavapai County, Arizona, United States
GoldSilverCopper
⌖ Show on mapUSGS source ↗
Description

Dennis May

Commodities
PrimaryGold, Silver
SecondaryCopper
Commodity typeM
Deposit
Deposit typeVein
Deposit sizeS
WorkingsUnderground
Orebody formLENSES
Ore controlFaulting, Shearing, Igneous Activity
Materials
Ore mineralsGalena, Silver
GangueQuartz
Geology
Host rockGranite
Associated rockMafic Intrusive Rock,Andesite
StructureGranite Is Massive And Unfoliated, Veins Parallel Andesite Dikes Which Trend E-W To Ne And Dip At Low Angles, Less Than 40 Deg.
AlterationNone
Economic & production
Development statusPast Producer
First production1894
Last production1943
Discovery year1883
Identification
Deposit ID10104151
MRDS IDM800366
Alternate namesKey Group
RegionNA
Data scoreC
Coordinates34.19977, -112.84686
References
AZ. DEPT. MIN. RESOURCES FILE DATA (CONGRESS MINE)ABGMT CLIPPINGS FILE (NIAGRA, KEY)USBM-ABGMT FILE DATANIEMUTH, 1987.