Mine detail: North San Francisco River Placers

Previously called 'Evans Point Fold PlacersPolaris Group PropertyBokares Placer Mine'

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Location

Lat / long:

33.10649, -109.28537

Resource(M)

Primary:	Gold
Ore:	Gold
Gangue:	Sulfur
Orebody form:	STREAKS
Discovery year:	1875

Production

Operation type:	Unknown
Deposit type:	Placer
Production size:	Small
Development status:	Producer

Geology

Host rock:	Longfellow Limestone
Host type:	Gravel
Structure:	Fine Flakes Of Gold Recovered From Well-Graded Stream Gravels And From Coarse, Roughly Bedded Gila Conglomerate Inthe Hills Around Morenci And On The Se Slopes Of Copper King Mountain, Gold Recovered From Quat River Gravels 50-60 Ft Above The Level Of The Present River Bed
Tectonic:	Great Fault Blocks Ne Of Copper King Mountain; Downthrow Of About 1000 Ft
Alteration processes:	Surface Oxidation Of Gold-Bearing Veins Ne Of Copper King Mountain

References

MRDS	M001287
DEP	10108994
Reference	{Deposit:: JOHNSON, M.G., 1972 , PLACER GOLD DEPOSITS OF ARIZONA: U.S.G.S. BULLETIN 1355 , P. 17}{Deposit:: ABGMT CLIPPINGS FILE; BOKARES MINE, POLARIS MINING AND MILLING CO, COLORADO MINE}{Deposit:: USGS PROF PAPER 43, 1905, P. 211-212,77,78}{Deposit:: USBM FILES; AMAX INC., EVANS POINT LIME QUARRY}{Deposit:: ARIZ DEPT OF MINERAL RESOURCES FILE DATA, POLARIS GROUP AND PARROT GROUP: SEE EVANS POINT GOLD PLACERS}{Deposit:: MINING REPORTER, V. 53, N. 16, (APRIL 19, 1906), REVIVAL OF GOLD MINING IN CLIFTON-MORENCI, ARIZONA, DISTRICT}{Deposit:: BENNETT, 1975, GEOLOGY AND ORIGIN OF THE BRECCIAS IN THE MORENCI-METCALF DISTRICT, GREENLEE COUNTY, ARIZONA: M.S. THESIS UNIVERSITY OF ARIZONA, 153 P.}
Reporter	Johnson, Kris H. (Creasey, S.C.), Calder, Susan R.