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: La Plata County, Colorado, United States, North America
Lat / long: 37.38251, -108.06398
dep_id: 10014180
mrds_id: D010842
Commodity type: metallic
Major mineral: Gold
Minor mineral: Silver
Operation type: Unknown
Deposit type: Vein
Production size: Small ammount of material produced
Development status: Past Producer
work_type: Underground
model: 85: Polymetallic veins
alteration: Oxidation Of Pyrite To Limonite; Sericitization Of Feldspars
conc_proc: Au Enrichment Through Near-Surface Oxidation Of Pyrite To Limonite
Reporter: Schwochow, Stephen D.
hrock_unit: Cutler Formation
hrock_type: Diorite
arock_unit: Porphyritic Rocks--Diorite-Monzonite Porphyry;Nonporphyritic Rocks--Syenite
arock_type: Syenite,Diorite
Structure: San Juan Uplift, Four Corners Platform, La Plata Dome
tectonic: Central Cordillera (Southern Rocky Mtns)
yr_lst_prd: 1933
disc_yr: 1895
discr: Jacob Ohlwiler And Others (Claimants)
References:
  • 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)
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