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  3. Mineral Resource Data System (MRDS)

Maple Leaf Mine

Past Producer in Gunnison county in Colorado, United States with commodities Gold, Silver
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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. Geologic structures
  11. Ore body information
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Ownership information
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10013137
MRDS ID D009255
Record type Site
Current site name Maple Leaf Mine
Alternate or previous names Claims: Maple Leaf, Maple Leaf No. 2, Little Nellie, Royal, Lubricator,
Related records 10142127

Geographic coordinates

Geographic coordinates: -106.75534, 38.44722 (WGS84)
Elevation 2505
Relative position 11.5 MILES S 53 E FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Iris(quadrangle 1:24,000 scale)

Saguache(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Tomichi(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 048N 002E 04 N2 OF SW OF SE Colorado

Comments on the location information

  • ON HILLSIDE 1000 FT EAST OF COCHETOPA CREEK AND 0.4 MILE ENE OF LUBRICATOR MINE, AT SILLSVILLE ; INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Gold Primary
Silver Tertiary

Materials information

Materials Type of material
Gold Ore

Analytical data

Result SHIPMENTS IN 1932 ASSAYED 0.52 OZ/TON AU

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Amphibolite
    Rock unit name Amphibolite
    Rock description Amphibolite
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic

Nearby scientific data

(1) -106.75534, 38.44722
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description San Juan Volcanic Field; Gunnison Uplift
Type of structure Local
Structure description Cochetopa Dome; Razor Creek Dome; Los Ochos Fault

Ore body information

  • Width 2.13M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1890
Discoverer Gunnison Mining And Manufacturing Co.
Year of last production 1933

Mining district

District name Cochetopa (Cochetopa Creek) District

Land status

Ownership category Private

Ownership information

  • Type Operator
    Owner J. H. Fox
    Home office Parlin, Co.
    First year 1933
  • Type Owner
    Owner C. T. Sills, J. H. Fox, And C. W. Shores
    First year 1933

Workings at the site

  • Type of workings Underground
    Length 482.8M

Comments on the workings information

  • SHAFT IS 290 FT DEEP, POSSIBLY INCLINED TO DEG ALONG PITCH OF VEIN, LEVEL 1 AT 60 FT HAS DRIFTS 156 FT WEST AND 70 FT EAST FROM SHAFT, LEVEL 2 AT 94 FT HAS DRIFTS 169 FT WEST AND 190 FT EAST FROM SHAFT. LEVEL 3 (TUNNEL LEVEL) AT 154 FT IS 520 FT LONG AND EXTENDS 240 FT BEYOND SHAFT. LEVEL 4 AT 225 FT HAS DRIFTS 102 FT WEST AND 87 FT EAST FROM SHAFT. SEVERAL STOPES HAVE BEEN DEVELOPED ON VARIOUS LEVELS. WORKINGS MAY HAVE EXTENDED ONTO LUBRICATOR CLAIM BUT APPARENTLY ARE SEPARATE FROM LUBRICATOR MINE.

Reference information

Bibliographic references

  • Deposit

    OLSON, J.C., 1976, GEOLOGIC MAP OF THE IRIS QUADRANGLE, GUNNISON AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1286

  • Deposit

    BLM MINERAL SURVEY MS 4910 AND 16738

  • Deposit

    COLO. DIV. MINES INSP. REPTS. 1906, V. 8, P.21

General comments

Subject category Comment text
Deposit TWO QUARTZ VEINS STRIKE EAST-WEST AND DIP STEEPLY TO SOUTH, PROBABLY RELATED TO STEEPLY DIPPING TO VERTICAL FISSURE THAT TRENDS N67 TO 77 W

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-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

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