Mine detail: Tomahawk Mine

Previously called 'Ben Hill, MS 12918Surprise, MS 12918Trail, MS 12901Klondike, MS 12901Patented Claims: Little Kate, MS 8964Little Jane, MS 12239Ground Hog, MS 12901Clydesdale, MS 12967Side Cut, MS 13607Bluff, MS 13607Castaway, MS 13607Columbine, MS 13611Tomahawk No. 1, MS 18533aTomahawk No. 2, MS 18533aExcelsior, MS 18533aTomahawk Mill Site, MS 18533bAmerican Eagle, MS 18711Unpatented Claims: Mile Hi Uranium Nos. 1-4Basin Creek Uranium Nos. 1-2'

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Location

Lat / long:

37.43001, -108.05648

Resource(M)

Primary:	Gold, Silver
Secondary:	Lead, Copper
Tertiary:	Zinc, Tellurium, Uranium, Manganese, Antimony
Ore:	Chalcopyrite, Covellite, Enargite, Galena, Gold, Sphalerite, Tetrahedrite
Gangue:	Quartz
Orebody form:	PINCH AND SWELL
Discovery year:	1892

Production

Operation type:	Unknown
Deposit type:	Vein
Production size:	Small
Development status:	Past Producer
First production started:	1892
Last production ended:	1934

Geology

Host rock:	Nonporphyritic Rocks--Diorite
Host type:	Diorite
Associated rock:	Nonporphyritic Rocks--Diorite;Porphyritic Rocks--Diorite-Monzonite Porphyry
Associated type:	Diorite
Structure:	San Juan Uplift, Four Corners Platform, La Plata Dome
Tectonic:	Central Cordillera (Southern Rocky Mtns)

References

MRDS	D010860
DEP	10014193
Reference	{Deposit:: ECKEL, E.B., AND OTHERS, 1949, GEOLOGY AND ORE DEPOSITS OF THE LA PLATA DISTRICT, COLORADO: USGS PROF. PAPER 219, P. 73-76, 169-171, PL. 29.}{Deposit:: BECKER, C.M., 1934, REPORT ON THE TOMAHAWK AND BLACK DIAMOND PROPERTIES, SAN JUAN DISTRICT, LA PLATA, COLORADO: UNPUB. ENG. REPT., 5 P.}{Deposit:: MCCAUSLAND, ROSS, 1936, TOMAHAWK-BLACK DIAMOND MINES, DURANGO, COLORADO: UNPUB. ENG. REPT., 22 P.}{Deposit:: COLORADO DIV. MINES INF. REPTS.}{Deposit:: BLM MINERAL SURVEYS MS 8964, 12239, 12901, 12918, 12967, 13607, 13611, 18533A&B, 18711}{Deposit:: NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 206.}{Production:: ECKEL AND OTHERS, 1949, P. 169 (AS COMPILED FROM USGS AND USBM RECORDS); MCCAUSLAND, 1936 (FIGURES FOR 1934)}
Reporter	Schwochow, Stephen D. (Hasler, J. William)