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Wahl Iron Mine

Past Producer in Custer county in Colorado, United States with commodities Iron, 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. Alteration
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10101721
MRDS ID D007871
Record type Site
Current site name Wahl Iron Mine
Alternate or previous names Black Pit, Schweigert Mine, Claims: Hudson Bay, Iron Contact, South Contact, Silver Iron, Dakota, Boss

Geographic coordinates

Geographic coordinates: -105.45613, 38.17112 (WGS84)
Elevation 2402
Relative position 2.5 MILES N 22 W FROM THE JUNCTION OF SR 96 AND CR 277 IN SILVER CLIFF, CO.

Site location context

Political divisions (FIPS codes)

Custer(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Westcliffe(quadrangle 1:24,000 scale)

Canon City(quadrangle 1:100,000 scale)

Pueblo(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Arkansas Headwaters(hydrologic unit)

Upper Arkansas(hydrologic accounting unit)

Upper Arkansas(hydrologic subregion)

Arkansas-White-Red(hydrologic region)

Geographic areas

Country State County
United States Colorado Custer

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 022S 072W 5 SW OF NW OF NE Colorado

Comments on the location information

  • 0.9 MILE NNE OF BEN WEST HILL SOUTH OF UNNAMED TRIBUTARY TO DE WEESE RES. (GRAPE CREEK) ; INFO FROM LAND.ST :(1976)

Commodities

Commodity Importance
Iron Primary
Manganese Critical Secondary

Comments on the commodity information

  • POROUS LIMONITE, DISSEMINATED PYRITE AT DEPTH

Materials information

Materials Type of material
Hematite Ore
Limonite Ore
Psilomelane Ore
Pyrite Ore

Alteration

  • (Local) Ferruginous Zone

Analytical data

Result LIMONITE CHARACTER SAMPLES AVERAGE 42.8 % FE, 0.08% P, .16% S, 13.1% SIO2, 4.5% MN
Result SPECTROGRAPHIC ANALYSIS OF LIMONITE: CU 0.01-0.1%, PB 0.01-0.1%, ZN 0.10-1.0%, TI 0.01-0.1%, ZR 0.001-0.01%, CR 0.001-0.01%, GA 0.001-0.01%, AG 0.001-0.01%, HG 0.001-0.1%
Result ORE AVERAGED 39.6% FE, 6.62% MN, 0.61% P, 13.66% SIO2 WITH FE RANGING FROM 34 TO 47% AND MN FROM 2.7 TO 9.3%
Result SOME ORE CONTAINS UP TO 25% MN

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Silver Cliff Rhyolite Undivided
    Rock description Silver Cliff Rhyolite Undivided
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Metamorphic Rock > Gneiss
    Rock unit name Undivided Gneiss
    Rock description Undivided Gneiss

Nearby scientific data

(1) -105.45613, 38.17112
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Silver Cliff Volcanic Center, Wet Mtns, Wet Mtn Valley
Type of structure Local
Structure description Near Ring Faults

Ore body information

  • Thickness 3.66M
    Length 579.12M
    Width 91.44M
    Depth to top 0M
    Depth to bottom 3.66M

Controls for ore emplacement

  • Mineralized Fissures (?) Near Volcanic/Gneiss Contact

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1882

Mining district

District name Silver Cliff

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner George D. Schweigert
    Home office Denver, Co.
    First year 1959

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 3.66M

Comments on the workings information

  • OPEN PIT, BULLDOZER CUTS, SHALLOW SHAFTS

Comments on development

  • COLORADO FUEL AND IRON CORP. PRODUCED ABOUT 3900 TONS IRON ORE IN 1924; AN ESTIMATED 5000 TONS WERE MINED IN 1942

Reference information

Bibliographic references

  • Deposit

    CROSS, WHITMAN, 1896, GEOLOGY OF SILVER CLIFF AND THE ROSITA HILLS, COLORADO: USGS 17TH ANN. REPORT, PT. 2, 263-403.

  • Deposit

    FIELDMAN, D.W. AND CROWLEY, F.P., 1980, SILVER DEPOSITS IN THE SOUTHERN PORTION OF THE SILVER CLIFF CALDERA, IN SILVER CLIFF VOLCANIC CENTER AND TALLAHASSEE CREEK URANIUM DEPOSITS: DENVER REGIONAL EXPLORATION GEOLOGISTS GUIDEBOOK, P. 1-14.

  • Deposit

    SHARP, W.M., 1978, GEOLOGIC MAP OF THE SILVER CLIFF AND ROSITA VOLCANIC CENTERS, CUSTER COUNTY, COLORADO: USGS MAP I-1081.

  • Deposit

    HARRER, C.M. AND TESCH, W.J., JR., 1959, RECONNAISSANCE OF IRON OCCURRENCES IN COLORADO: U.S. BUREAU OF MINES. INFORMATION CIRCULAR 7918

General comments

Subject category Comment text
Deposit Discovery Year: 1870-1895

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUN-1981 Collins, Donna B. Colorado Geological Survey

Beyond USGS

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

Maps centered on this site

Authoritative Colorado resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.