Shawmut Mine

The Shawmut Mine is a mine located in Saguache county, Colorado at an elevation of 11,827 feet.

About the MRDS Data:

All mine locations were obtained from the USGS Mineral Resources Data System. The locations and other information in this database have not been verified for accuracy. It should be assumed that all mines are on private property.

Mine Info

Satelite View

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Site Name

Primary: Shawmut Mine

Commodity

Tertiary: Silver
Tertiary: Gold
Tertiary: Zinc
Tertiary: Copper
Tertiary: Lead

Location

State: Colorado
County: Saguache
District: Bonanza (Kerber Creek)

Land Status

Land ownership: Private
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.

Holdings

Not available

Workings

Type: Underground

Ownership

Not available

Production

Not available

Deposit

Record Type: Site
Operation Category: Past Producer
Operation Type: Unknown
Years of Production:
Organization:
Significant: N

Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

Mineral Deposit Model

Not available

Orebody

Not available

Structure

Not available

Alterations

Not available

Rocks

Name: Latite
Role: Associated
Age Type: Associated Rock
Age Young: Oligocene

Name: Latite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene

Analytical Data

Analytical Data: 280 LEVEL, TR TO 3.0 OZ/TO N AU, TR TO 4.74 OZ/TON AG.
Analytical Data: 215 LEVEL, TR TO 0.24 OZ/TON AV, 0.4 TO 18.6 OZ/TON AG
Analytical Data: RAISE BETW. 165 AND 215 LEVELS, TR TO 0.24 OZ/TON AU, TR TO 50.26 OZ/TON AG
Analytical Data: ORE SHIPMENTS IN 1911 AND 1917 CONTAINED AVERAGE 1% PB, 2% CU, 16 OZ/TON AG, AND 0.07 /I/TON AU. ASSAYS FROM VARIOUS LEVELS: 165 LEVEL, TR TO 0.08 /Z TON AU, TR TO 14.62 OZ/TON AG

Materials

Ore: Pyrite
Ore: Galena
Ore: Sphalerite
Ore: Chalcopyrite
Gangue: Quartz

Comments

Comment (Location): S-T-R, LAT-LONG, AND ELEV. TAKEN FROM BURBANK'S (1932) PLATE 1 (SCALE 1:12000). MINE OR CLAIM LIES ON SOUTH SLOPE OF ROUND MTN ; INFO FROM LAND.ST :(1976)

Comment (Production): ALTHOUGH SHAWMUT IS ONE OF DISTRICT'S EARLY PRODUCERS, RECORDS ARE UNAVAILABLE. PRODUCTION IN 1888 INCLUDED $80 AU, $2586 AG, $1340 CU.

Comment (Workings): MINE DEVELOPED BY 300-FT SHAFT AND FIVE PRINCIPAL LEVELS (BASED ON DEPTH BELOW SURFACE): 90, 120, 165, 215, 280. DRIFT FOOTAGES NORTH AND SOUTH FROM SHAFT AND CROSSCUT FOOTAGES AS FOLLOWS: 90 LEVEL, 75 FT NORTH; 120 LEVEL, 120 FT SOUTH; 165 LEVEL, 245 FT NORTH , 85 FT SOUTH, 10 FT CROSSCUT; 215 LEVEL, 310 FT NORTH, 50 FT SOUTH, 50 FT CROSSCUT; 280 LEVEL, 200 FT NORTH, 160 FT SOUTH, 30 FT CROSSCUT. TWO 50-FT RAISES CONNECT 165 AND 215 LEVELS AT POINTS 55 AND 225 FT NORTH OF SHAFT. INTERMEDIATE STATION AT 245 FT IN SHAFT. SHAWMUT TUNNEL DRIVEN 1170 FT AT N83E. AT STATION 13 (990 FT FROM PORTAL) DRIFT DRIVEN NE ALONG SHAWMUT VEIN FOR 65 FT. THENCE RAISE DRIVEN 120 F T TO CONNECT WITH 280 LEVEL AT POINT 40 FT SE OF SHAFT OVERALL LENGTH AND WIDITH GIVEN ABOVE EXLUDES SHAWMUT TUNNEL.

Comment (Development): AFTER CLAIM LOCATION IN 1885, PROPERTY CHANGED OWNERSHIP SEVERAL TIMES THRU 1907. KAPI MINING AND MILLING CO. STARTED SHAWMUT TUNNEL IN 1912 TO PROVIDE DRAINAGE AND INTERSECT OTHER VEINS. RAISE FROM TUNNEL TO SHAWMUT WORKINGS COMPLETED ABOUT 1918

Comment (Deposit): PRINCIPAL VEIN IS SHAWMUT VEIN (ATTITUDE GIVEN ABOVE). SHAWMUT TUNNEL INTERSECTS OTHER VEINS, INCLUDING MAY BELLE VEIN, WEST O F SHAWMUT VEIN TUNNEL AND LOWER MINE LEVELS ARE IN RAWLEY ANDESITE, BUT UPPER LEVELS MAY HAVE PENETRATED BLOCKS OF BONANZA TUFF. BASE OF PB OR E PROBABLY WITHIN 200 FT OF SURFACE.

References

Reference (Deposit): PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT, SAGUACHE COUNTY, COLORADO: COLORADO CEOL. SURVEY BULL. 9, 136 P.

Reference (Deposit): BURBANK, W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.

Colorado Mining Photos

Check out this collection of Colorado's best historic mining photos: Incredible Photos of Colorado Mining Scenes.