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Monon Mine

Past Producer in Mineral county in Colorado, United States with commodities Silver, Lead, Copper, Gold, Zinc
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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 10012356
MRDS ID D007946
Record type Site
Current site name Monon Mine
Alternate or previous names Monon Hill Mine
Related records 10166362

Geographic coordinates

Geographic coordinates: -106.95812, 37.84445 (WGS84)
Elevation 2798
Relative position 1.8 MILES S70W FROM CREEDE (B.M. 8853 AT NORTH END OF TOWN)

Site location context

Political divisions (FIPS codes)

Mineral(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Creede(quadrangle 1:24,000 scale)

Del Norte(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Rio Grande Headwaters(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 Mineral

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 042N 001W 35 NW OF NW OF SW Colorado

Comments on the location information

  • S-T-R, LAT-LONG, AND ELEV DETERMINED FROM EMMONS AND LARSEN'S (1923) TOPO MAP (1:24,000). MINE OR CLAIM LIES ON WEST SIDE OF MONON HILL AT SUNNYSIDE ; INFO FROM LAND.ST :(1976)

Commodities

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

Materials information

Materials Type of material
Chalcopyrite Ore
Galena Ore
Sphalerite Ore
Barite Gangue
Calcite Gangue
Pyrite Gangue

Alteration

  • (Local) Erratic Silicification

Analytical data

Result ASSAY OF 5 CARLOADS OF ORE RAN 25 TO 71 OZ/TON AG

Host and associated rocks

  • Host or associated Associated
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
    Rock description Campbell Mtn. Mbr. Of Bachelor Mtn. Rhyolite
    Stratigraphic age (youngest) Oligocene
    Stratigraphic age (youngest) Oligocene
  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium
    Rock unit name Creede Formation;Campbell Mtn. Member Of Bachelor Mtn. Rhyolite
    Rock description Creede Formation;Campbell Mtn. Mbr. Of Bachelor Mtn. Rhyolite
  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone

Nearby scientific data

(1) -106.95812, 37.84445
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field; La Garita, Creede, And Bachelor Calderas
Type of structure Local
Structure description Local Normal Faulting In Volcanics Underlying Creede Fm, Between Alpha-Corsair And Bulldog Mtn. Fault Zones And Related To Subsidence/Resurgence Of Bachelor And Creede Cauldrons (Creede Graben).

Ore body information

  • General form LENSE, WEDGE

Controls for ore emplacement

  • Porous, Coarse-Gr. Sediments Along Steep Unconformable Contact With Rhyolite

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1914
Discoverer Samuel Magnusson
Year of first production 1914
Year of last production 1941

Mining district

District name Creede District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner Collins, A. B. And Wheeler, H.R.
    Last year 1929

Workings at the site

  • Type of workings Underground
    Overall depth 85.34M

Comments on the workings information

  • MINE COMPLEX CONSISTS OF 8 SHAFTS (UNKNOWN DEPTH), 6 PARTLY INTERCONNECTED MAIN DEVELOPMENT TUNNELS AND LEVELS, 4 MAJOR STOPES. INITIAL PORTAL HEADINGS AND MEASURED LENGTH OF MAPPED WORKINGS (LESS STOPES) FROM STEVEN AND RATTE (1965): MOON TUNNEL-S41E, 870 FT, MAGNUSSON TUNNEL-S70E, 660 FT, EADS AND DISCOVERY TUNNELS, S67E, 960 FT, MANITOBA TUNNEL-S71E, 610 FT, SILVER HORDE TUNNEL-N38E, 1890 FT. LARSEN (1929) SHOWS LE FEVRE TUNNEL DRIVEN DUE EAST BUT NOT EXTENDING TO ORE BODY OR OTHER WORKINGS.

Comments on development

  • MAIN MINING ACTIVITY 1918-22 WITH ESTIMATED PRODUCTION OF $800,000 (95% AG, REST PB, LITTLE AU, CU). EXPLORATION BUT NO PRODUCTION 1952-58.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit SULFIDES IMPREGNATE AND FORM DRUSY COATINGS IN WEDGES OF COARSE-GR., SILICIFIED FANGLOMERATE, PARTLY AND IRREGULARLY IMPREGNATED BY TRAVERTINE, WEDGING OUT DOWNDIP, BOUNDED BY NON- OR WEAKLY MINERALIZED THIN-BEDDED SILTSTONE AND SANDSTONE AND BY UNDERLYING BURIED HILL OF CAMPBELL MTN. RHYOLITE.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-SEP-1981 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

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