Mine detail: Monarch Mine

Previously called 'Unpatented Claims: ProtectionTip Top MinePatented Claims: Tip Top, MS 8870Chandler, MS 8870Lafe Pence, MS 8870Capitan, MS 8870Platora, MS 8870EclipseMonitorSunshineJupiterEchoLonesomeHappy'

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Location

Lat / long:

37.38251, -108.06398

Resource(M)

Primary:	Gold
Secondary:	Silver
Discovery year:	1895

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
Last production ended:	1933

Geology

Host rock:	Cutler Formation
Host type:	Diorite
Associated rock:	Porphyritic Rocks--Diorite-Monzonite Porphyry;Nonporphyritic Rocks--Syenite
Associated type:	Syenite,Diorite
Structure:	San Juan Uplift, Four Corners Platform, La Plata Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)
Alteration processes:	Oxidation Of Pyrite To Limonite; Sericitization Of Feldspars

References

MRDS	D010842
DEP	10014180
Reference	{Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 67-68, 152-154.}{Deposit:: COLORADO DIV. MINES INF. REPT.}{Deposit:: BLM MINERAL SURVEY MS 8870}{Production:: ECKEL AND OTHERS, 1949, P. 152 (AS COMPILED FROM USBM RECORDS)}
Reporter	Schwochow, Stephen D.