Commodities
PrimaryGold, Silver
SecondaryLead, Copper
TertiaryZinc, Tellurium, Uranium, Manganese, Antimony
Commodity typeM
Deposit
Deposit typeVein
Model85: Polymetallic veins
Deposit sizeS
Orebody formPINCH AND SWELL
Materials
Ore mineralsChalcopyrite, Covellite, Enargite, Galena, Gold, Sphalerite, Tetrahedrite
GangueQuartz
Geology
Host rockDiorite · Nonporphyritic Rocks--Diorite
Associated rockDiorite · Nonporphyritic Rocks--Diorite;Porphyritic Rocks--Diorite-Monzonite Porphyry
StructureSan Juan Uplift, Four Corners Platform, La Plata Dome
Tectonic settingCentral Cordillera (Southern Rocky Mtns)
Economic & production
Development statusPast Producer
First production1892
Last production1934
Discovery year1892
Identification
Deposit ID10014193
MRDS IDD010860
Alternate namesBen Hill, MS 12918, Surprise, MS 12918, Trail, MS 12901, Klondike, MS 12901, Patented Claims: Little Kate, MS 8964, Little Jane, MS 12239, Ground Hog, MS 12901, Clydesdale, MS 12967, Side Cut, MS 13607, Bluff, MS 13607, Castaway, MS 13607, Columbine, MS 13611, Tomahawk No. 1, MS 18533a, Tomahawk No. 2, MS 18533a, Excelsior, MS 18533a, Tomahawk Mill Site, MS 18533b, American Eagle, MS 18711, Unpatented Claims: Mile Hi Uranium Nos. 1-4, Basin Creek Uranium Nos. 1-2
RegionNA
Data scoreB
Coordinates37.43001, -108.05648
References
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.BECKER, C.M., 1934, REPORT ON THE TOMAHAWK AND BLACK DIAMOND PROPERTIES, SAN JUAN DISTRICT, LA PLATA, COLORADO: UNPUB. ENG. REPT., 5 P.MCCAUSLAND, ROSS, 1936, TOMAHAWK-BLACK DIAMOND MINES, DURANGO, COLORADO: UNPUB. ENG. REPT., 22 P.COLORADO DIV. MINES INF. REPTS.BLM MINERAL SURVEYS MS 8964, 12239, 12901, 12918, 12967, 13607, 13611, 18533A&B, 18711NELSON-MOORE, J.L., AND OTHERS, 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULL. 40, P. 206.ECKEL AND OTHERS, 1949, P. 169 (AS COMPILED FROM USGS AND USBM RECORDS); MCCAUSLAND, 1936 (FIGURES FOR 1934)