Mine detail: Silver Swan Mine

Previously called 'Little Maggie, MS 8070EliesePatented Claims: N.A. Cowdrey, MS 6317Hardscrabble, MS 8070Burchard, MS 8070Sachem, MS 20620Dawson, MS 20620Silver Swan, MS 20620Wamba, MS 20620Katherine,Ms 20620Twilight, MS 20622Unpatented Claims: New EraNirvanaNew Era Nos. 1-3Nirvana Nos. 1-3FrancesTamaleRubyIraAliceMarjoriePine KnotPanamaCrescent RomildaLouiseTangoWhite HopeRoseEleanorSignal and SunriseChampiton'

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Location

Lat / long:

37.68084, -108.03565

Resource(M)

Primary:	Silver, Lead, Zinc
Secondary:	Copper, Gold
Ore:	Chalcopyrite, Pyrite, Sphalerite

Production

Operation type:	Unknown
Production size:	Small
Development status:	Past Producer
Last production ended:	1966

Geology

Host rock:	Hermosa Formation
Host type:	Shale,Sandstone,Limestone
Associated rock:	Hornblende Latite Porphyry;Augite Monzonite
Associated type:	Monzonite,Latite
Structure:	San Juan Uplift, Paradox Basin, Rico Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D010789
DEP	10014142
Reference	{Deposit:: RANSOME, F.L., 1901, THE ORE DEPOSITS OF THE RICO MOUNTAINS, COLORADO: USGS 22D ANN. REPT., PT. 2, P. 361-362.}{Deposit:: MCKNIGHT, E.T., 1974, GEOLOGY AND ORE DEPOSITS OF THE RICO DISTRICT, COLORADO: USGS PROF. PAPER 723.}{Deposit:: PRATT, W.P., AND OTHERS, 1969, GEOLOGIC MAP OF THE RICO QUADRANGLE, DOLORES AND MONTEZUMA COUNTIES, COLORADO: USGS MAP GQ-797.}{Deposit:: COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 6317, 8070, 20620, 20622}{Production:: COLORADO DIV. MINES ANNUAL OPERATOR REPTS.}
Reporter	Schwochow, Stephen D.