Mine detail: Dolly Varden Mine

Previously called 'Varden Belle MinePatented Claim: Dolly Varden, MS 172'

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Location

Lat / long:

37.98694, -107.53675

Resource(M)

Primary:	Silver
Secondary:	Lead, Copper
Tertiary:	Antimony, Zinc
Ore:	Chalcocite, Chalcopyrite, Galena, Pyrargyrite, Sphalerite, Stephanite
Gangue:	Quartz
Discovery year:	1877

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1878
Last production ended:	1919

Geology

Host rock:	Tuffaceous Sandstone Of Henson Member Of Silverton Volcanics
Host type:	Sandstone,Andesite
Associated rock:	Porphyritic Andesite Of Pyroxene Andesite Member Of Silverton Volcanics;Fish Canyon Tuff;Rhyolite Of Volcanics Of Uncompahgre Peak;Intrusive Rocks--Rhyolite
Associated type:	Rhyolite,Quartz Latite,Andesite
Structure:	San Juan Volcanic Field, San Juan Depression, San Juan-Uncompahgre Calderas, Lake City Caldera
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D011605
DEP	10014714
Reference	{Deposit:: LIPMAN, P.W., 1976, GEOLOGIC MAP OF THE LAKE CITY CALDERA AREA, WESTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-962.}{Deposit:: BROWN, W.H., 1926, THE MINERAL ZONES OF THE WHITE CROSS DISTRICT AND NEIGHBORING DEPOSITS IN HINSDALE COUNTY, COLORADO: MINES MAG., V. 15, NO. 11, P. 5-15.}{Deposit:: CROSS, WHITMAN, AND OTHERS, 1905, DESCRIPTION OF THE SILVERTON QUADRANGLE: USGS FOLIO 120, 34 P.}{Deposit:: COLORADO DIV. MINES INF. REPT.}{Deposit:: BLM MINERAL SURVEY MS 172}{Deposit:: LUEDKE, R.G., AND BURBANK, W.S., 1975, PRELIMINARY GEOLOGIC MAP OF THE HANDIES PEAK QUADRANGLE, COLORADO: USGS OPEN-FILE REPT. 75-432.}{Deposit:: RANSOME, F.L., 1901, ECONOMIC GEOLOGY OF THE SILVERTON QUADRANGLE, COLORADO: USGS BULL. 182, P. 190-191.}
Reporter	Schwochow, Stephen D.