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Rawley Mine

Past Producer in Saguache county in Colorado, United States with commodities Lead, Zinc, Copper, Silver, Gold, Manganese
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Sections on this page
  1. Identification information
  2. Geographic coordinates
  3. Site location context
  4. Geographic areas
  5. Public Land Survey System information
  6. Commodities
  7. Materials information
  8. Host and associated rocks
  9. Nearby scientific data
  10. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Production statistics
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10013082
MRDS ID D009180
Record type Site
Current site name Rawley Mine
Related records 10167267

Geographic coordinates

Geographic coordinates: -106.14338, 38.31445 (WGS84)
Elevation 3281
Relative position 16.1 MILES N03E FROM SAGUACHE

Site location context

Political divisions (FIPS codes)

Saguache(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Bonanza(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

San Luis(hydrologic unit)

Rio Grande Headwaters(hydrologic accounting unit)

Rio Grande Headwaters(hydrologic subregion)

Rio Grande(hydrologic region)

Federal lands

Rio Grande National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Colorado Saguache

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 047N 007E 24 SE OF SW OF NE Colorado

Comments on the location information

  • S-T-R, LAT-LONG, AND ELEV. TAKEN FROM BURBANK'S (1932) PLATE 1 (SCALE 1:12000). MINE OR CLAIM LIES ALONG RAWLEY GULCH ON SW SLOPE OF MOUNT MANITOU ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Lead Primary
Zinc Critical Primary
Copper Primary
Silver Primary
Gold Secondary
Manganese Critical Tertiary

Materials information

Materials Type of material
Bornite Ore
Chalcopyrite Ore
Covellite Ore
Enargite Ore
Galena Ore
Pyrite Ore
Sphalerite Ore
Stromeyerite Ore
Barite Gangue
Calcite Gangue
Jasper Gangue
Pitchblende Gangue
Quartz Gangue
Rhodochrosite Gangue
Siderite Gangue
Uraninite Gangue

Analytical data

Result ORE ANALYSES FROM DIFFERENT MINE LEVES: 200 LEVEL, 10 OZ/TON AG, 11.6% PB, 2.11% CU
Result 300 LEVEL, 9.72 OZ/TON AG, 12.7% PB, 1.7% CU
Result 400 LEVEL (SOUTH), 12.8 OZ/TON AG, 18.5% PB, 1.4% CU
Result 400 LEVEL (SOUTH), 6.75 OZ/TON AG, 12.5% PB, 1.57% CU
Result 400 LEVEL (NORTH), 9.86 OZ/TON AG, 11% PB, 2.45% CU
Result 500 LEVEL (SOUTH), 12.2 OZ/TON AG, 7.78% PB, 3.25% CU
Result 500 LEVEL (NORTH), 10.3 OZ/TON AG, 5.78% PB, 3.02% CU
Result 500 LEVEL (NORTH), 6.77 OZ/TON AG, 3.31% PB, 2.79% CU
Result 600 LEVEL (SOUTH), 13.4 OZ/TON AG, 5.6% PB, 3.54% CU
Result 600 LEVEL (NORTH), 9.9 OZ/TON AG, 1.04% PB, 3.85% CU
Result 600 LEVEL (NORTH), 15.1 OZ/TON AG, 2.06% PB, 5.07% CU
Result 680 LEVEL (SOUTH), 10.7 OZ/TON AG, 1.52% PB, 3.18% CU
Result 680 LEVEL (NORTH), 12.5 OZ/TON AG, 0.84% PB, 5.22% CU
Result 700 LEVEL (SOUTH), 11.8 OZ/TON AG, 2.41% PB, 3.17% CU
Result 700 LEVEL (NORTH), 6.84 OZ/TON AG, 0.69% PB 2.25% CU
Result 700 LEVEL (NORTH), 16.0 OZ/TON AG, 1.5% PB, 6.33% CU
Result 800 LEVEL (NORTH), 8.48 OZ/TON AG, 6.67% PB, 2.36% CU
Result 1200 LEVEL (SOUTH), 25.2 OZ/TON AG, 3.2% PB, 3.6% CU
Result 1200 LEVEL (SOUTH), 4.48 OZ/TON AG, 0.8% PB, 0.59% CU. SEE ALSO ORE ANALYSES IN PRODUCTION TABLE.

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Intermediate Volcanic Rock > Andesite

Nearby scientific data

(1) -106.14338, 38.31445
ListMap

Economic information

Ore body information

  • General form TABULAR
    Thickness 3.66M

Controls for ore emplacement

  • Ore Deposition Controlled By Size And Character Of Faults And Fractures Related To Subsidence Of Bonanza Caldera. Ores Have Affinity For (1) Fissure Wallrocks Entirely Of Andesite, Or Latite, Or Andesite And Latite In Fault Contact; (2) Fis

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1880
Year of first production 1882
Year of last production 1969

Mining district

District name Bonanza (Kerber Creek)

Land status

Ownership category Private

Ownership information

  • Type Owner-Operator
    Owner U.S. Silver Mining Co.
    Home office Salida, Co.
    First year 1972

Production statistics

  • Year 1959
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Zinc Zinc 7wt-pct
    Major Ore Lead Lead 3wt-pct
    Major Ore Silver Silver 57g/mt

Comments on the production information

  • PATTON REPORTS PRE-1900 PRODUCTION OF 500 TONS OF AU-AG-PB-CU ORE VALUED AT $15,000. NO DATA GIVEN FOR YEARS FROM 1900-1930 NOT LISTED IN TABLE. NO PRODUCTION IN 1931-1935, 1942, 1960-1967. ORE PRODUCTION REPORTED SEPARATELY FOR INDIVIDUAL MINE LEVELS 1939-1959

Workings at the site

  • Type of workings Underground
    Length 12042.65M

Comments on the workings information

  • RAWLEY VEIN NORTH OF PARAGON VEIN AND 580 FT ON TIP TOP VEIN. INTERMEDIATE 950 LEVEL (EL. 10100 FT) DEVELOPED ON RAWLEY VEIN BY 270-FT DRIFT BETWEEN SHAFT AND PARAGON VEIN, CONNECTED BY RAISE FROM 1000 TO 900 LEVEL. 320 FT NORTH OF SHAFT, SECOND SUBLEVEL (EL. 10070 FT) HAS 170 FT AND IS CONNECTED TO RAISES FROM 1000 TO 900 LEVELS. 1000 LEVEL (EL. 9990 FT) DEVELOPED BY 7400 FT OF DRIFT FROM SHAFT. 1200 LEVEL (EL. 9850 FT) DEVELOPED BY 970 FT DRIFT ON RAWLEY VEIN. AT BOTTOM OF SHAFT, 1200 LEVEL IS TERMINATION OF RAWLEY DRAINAGE TUNNEL. PORTAL OF DRAINAGE TUNNEL LOCATED 1.15 MILES S55W OF 100 ADIT TUNNEL, DRIVEN 4080 FT N50E, THENCE 2000 FT N75E TO 1200 LEVEL. APPROX. 170 FT OF CROSSCUT AND DRIFT DEVELOPED ALONG CLARK VEIN OFF WINZE FROM 1200 LEVEL TO 1260 LEVEL. MISCELLANEOUS DRIFTS AND CROSSCUTS TOTAL 1300 FT. RAISES AND WINZES INDICATED ON LONGITUDINAL SECTION TOTAL 5340 FT WITH 890-FT SHAFT. MEASUREMENTS FROM BURBANKS (1932) MAPS.
  • MINE DEVELOPED BY 12 LEVELS ON RAWLEY, TIP, TOP, PARALLEL, AND PARTLY ON PARAGON VEINS. UPPER FOUR LEVELS DEVELOPED BY ADITS. SHAFT CONNECTS 400 AND ALL LOWER LEVELS. NUMEROUS RAISES CONNECT VARIOUS ADJACENT LEVELS. 100 LEVEL ADIT (EL. 10935 FT) DRIVEN APPROX. DUE NORTH FOR 210 FT. 200 LEVEL ADIT (EL. 10890 FT) LIES 255 FT DUE SOUTH OF 100 ADIT AND IS DRIVEN SLIGHTLY NE TO NW FOR 980 FT ON RAWLEY VEIN. AT 120 FT INTO TUNNEL, 100 FT OF DRIFT DEVELOPED ON PARAGON VEIN. 300 LEVEL ADIT (EL. 10770 FT) LIES 560 FT S15E OF 100 ADIT AND IS DRIVEN N25W FOR 350 FT TO PARAGON VEIN, THENCE 1010 FT NW ALONG RAWLEY VEIN. AT 360 FT ALONG RAWLEY DRIFT, 140-FT CROSSCUT DRIVEN N80W TO PARALLEL VEIN, ALONG WHICH 460-FT DRIFT DEVELOPED. ALSO ON 300 LEVEL IS 300-FT DRIFT ON PARAGON VEIN AND 1950-FT CROSSCUT EASTWARD TO MICHIGAN VEIN. 400 LEVEL ADIT (EL. 10680 FT) LIES 1110 FT S10W FROM 100 ADIT AND IS DRIVEN N68E FOR 660 FT. AT 525 FT, 230-FT DRIFT DEVELOPED S45E AND 1430 FT GENERALLY N15 TO 20W, THENCE
  • N15 TO 40E FOR 700 FT INTO ANTORO MINE WORKINGS AT 1120 FT ALONG MAIN DRIFT, A 130-FT CROSSCUT DRIVEN N65W TO PARALLEL VEIN. ON 400 LEVEL, INTERNAL SHAFT LIES 80 FT S15E OF 100 ADIT. 500 LEVEL (EL. 10580 FT) HAS 1040 FT DRIFT ON RAWLEY VEIN NORTH OF PARAGON VEIN. SOUTH OF PARAGON, 440 FT OF DRIFT DEVELOPED ON TIP TOP VEIN. ON 600 LEVEL (EL. 10480 FT), 1350 FT OF DRIFT DEVELOPED NORTH OF AND 120 FT SOUTH OF PARAGON VEIN, THENCE 60-FT EASTWARD CROSSCUT TO TIP TOP VEIN ALONG WHICH 350 FT OF DRIFT DEVELOPED ON 680 LEVEL (EL. 10400 FT), 960 FT OF DRIFT DISCONTINUOUSLY DEVELOPED NORTH OF PARAGON VEIN, AND 150-FT DRIFT DEVELOPED SOUTH OF PARAGON ON TIP TOP VEIN. ON 700 LEVEL (EL. 10300 FT), 1150 FT OF DRIFT DEVELOPED ON RAWLEY VEIN NORTH OF PARAGON VEIN AND 230 FT OF DRIFT ON TIP TOP VEIN SOUTH OF PARAGON. ON 800 LEVEL (EL. 10220 FT), 830 FT OF DRIFT DISCONTINUOUSLY DEVELOPED ON RAWLEY VEIN NORTH OF PARAGON VEIN. ON 900 LEVEL (EL. 10140 FT), 1010 FT OF DRIFT DISCONTINUOSLY DEVELOPED ON

Comments on development

  • ONLY SMALL PRODUCTION OF LOW-GRADE ORE BEFORE 1902. NEWLY CONSTRUCTED MILL THEN HAD DIFFICULTY AND ONLY SMALL AMOUNTS OF CONCENTRATES SHIPPED UNTIL 1905 WHEN COMPANY REORGANIZED. DEVELOPMENT CONDUCTED UNTIL 1911 WHEN WORK BEGAN ON RAWLEY DRAINAGE TUNNEL (COMPLETED 1912). MINE IDLE TILL 1916. COMPLETION OF POWER LINE, 7.25-MILE AERIAL TRAM, AND COMPANY REORGANIZATION BY 1923 LED TO MORE PRODUCTIVE ERA FROM 1925-1930. MINING REVIVED IN LATE 1930S, 1940S, AND 1950S. LAST PRODUCTION IN 1969.

Reference information

Bibliographic references

  • Deposit

    PATTON, H.B., 1916, GEOLOGY AND ORE DEPOSITS OF THE BONANZA DISTRICT,SAGUACHE COUNTY,COLORADO: COLORADO GEOLOGICAL SURVEY BULL. 9, 136 P.

  • Deposit

    BURBANK,W.S., 1932, GEOLOGY AND ORE DEPOSITS OF THE BONANZA MINNING DISTRICT, COLORADO: USGS PROF. PAPER 169, 166 P.

  • Deposit

    NELSON-MOORE, J.L., COLLINS, P.B., AND HORNBAKER, A.L., 1978 RADIOACTIVE MINERAL ACCURRENCES OF COLORADO AND BIBLIOGRAPHY: COLO. GEOL.SURVEY BULL. 40, P. 393.

  • Production

    PRODUCTION FIGURES FOR 1902-1930 FROM BURBANK (1932) AS COMPILED FROM USGS, USBM, AND COMPANY RECORDS. PRODUCTION FIGURES FOR 1936-1969 AND ORE GRADES FOR 1916-1969 COMPILED FROM COLO. DIVISION OF MINES ANNUAL OPERATORS REPTS.

General comments

Subject category Comment text
Deposit STRIKE OF RAWLEY VEIN IS IRREGULAR BUT GENERALLY RANGES FROM N9 TO 15W BECOMING CONCAVE EASTWARD AND BECOMING NE TRENDING AT NORTH END. FISSURE IS 2 TO 12 FT. WIDE, AVERAGING 4 FT. ORE FILLS FISSURE OPENINGS AND REPLACES WALLROCK AND BRECCIA, AND TENDS TO BE MORE UNIFORMLY DISTRIBUTED ACROSS FISSURE RATHER THAN IN STREAKS. NO PRONOUNCED OXIDATION OR ENRICHMENTS EXCEPT WITHIN 50 FT OF SURFACE. SOME PB ENRICHMENT OCCURS NEAR PARAGON FAULT, WHICH INTERSECTS RAWLEY FISSURE NEARLY AT RIGHT ANGLE. RAWLEY FISSURE TRENDS MORE NORTHEASTERLY, WIDTH OF OPENINGS DECREASE, DIP FLATTENS, AND SPLITS APPEAR ALL TOWARD NORTH OR IN DIRECTION AWAY FROM PARAGON FAULT. TIP TOP VEIN SITUATED SOUTH OF PARAGON FAULT AND EAST OF PROJECTION OF RAWLEY FAULT INTO PARAGON'S HANGING WALL, TRENDS N15 TO 18W, 83SW, AND DEVELOPED ON 500 THRU 900 LEVELS. PARALLEL VEIN LIES IN FOOTWALL OF RAWLEY FAULT AND IS DEVELOPED ON 300 THRU 500 LEVELS. CLARK VEIN TRENDS SLIGHTLY NE, DIPS 35 TO 40 SE, DEVELOPED ON 1260 LEVEL BELOW
Deposit DRANAGE TUNNEL.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1982 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.

External references

Maps centered on this site

Authoritative Colorado resources

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