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Garo Deposit

Past Producer in Park county in Colorado, United States with commodities Uranium, Vanadium, Radium, Copper
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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. Production statistics
  19. Workings at the site
  20. Links to other databases
  21. Bibliographic references
  22. Reporter information

Geologic information

Identification information

Deposit ID 10013017
MRDS ID D009076
Record type Site
Current site name Garo Deposit
Alternate or previous names Shirley May Mine, Duvall Discovery
Related records 10191571, 10296409

Geographic coordinates

Geographic coordinates: -105.89088, 39.09583 (WGS84)
Elevation 2792
Relative position 0.9 MILE S 03 E OF GARO; 10.5 MILES S 33 E OF FAIRPLAY

Site location context

Political divisions (FIPS codes)

Park(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Garo(quadrangle 1:24,000 scale)

Bailey(quadrangle 1:100,000 scale)

Denver(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

South Platte Headwaters(hydrologic unit)

South Platte(hydrologic accounting unit)

South Platte(hydrologic subregion)

Missouri(hydrologic region)

Geographic areas

Country State County
United States Colorado Park

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 011S 076W 16 NE OF SW OF NE Colorado

Comments on the location information

  • INFO FROM LAND.ST :1976

Commodities

Commodity Importance
Uranium Primary
Vanadium Critical Primary
Radium Primary
Copper Secondary

Materials information

Materials Type of material
Chalcocite Ore
Chrysocolla Ore
Covellite Ore
Malachite Ore
Tyuyamunite Ore
Uranophane Ore
Calcite Gangue
Chalcedony Gangue
Hematite Gangue
Limonite Gangue
Pyrite Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result CHANNEL SAMPLES ACROSS MINERALIZED SANDSTONES CONTAIN 0.001 TO 0.48% U AND 0.05 TO 1.37% V205. AVERAGE COPPER IS ABOUT 0.0X% BUT MAY RUN TO 1.34% CU. SELECTED SAMPLES FROM THE DUMP CONTAIN 2.39% U308 AND 4.34% V205. SAMALL QUANTITIES OF T1, AG, PB, ZN, ALSO FOUND
Result 0.000X TO 0.00X % CO, NI, Y
Result 0.00X TO 0.0X% SR, ZR, BO
Result O.0X% MN
Result O.X FE
Result X.0% K, CA, NA, AL
Result XX % SI
Result O.0X TO O.X% BA

Host and associated rocks

  • Host or associated Host
    Rock type Sedimentary Rock > Clastic Sedimentary Rock > Sandstone
    Rock unit name Maroon Formation
    Rock description Maroon Formation
    Stratigraphic age (youngest) Late Permian

Nearby scientific data

(1) -105.89088, 39.09583
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description South Park
Type of structure Local
Structure description Nw-Trending Garo Anticline; Complex High Angle, Normal And Reverse Faults, Striking N10w To N35e And Dipping As Much As 88 Degree Se; There Is As Much As 1000 Feet Of Displacement Horizontally Along Some Faults, And 60 Ft Vertically; The Faults Are Left Lateral, Moving The Western Side Of The Fault Northward; Small, North-Plunging Folds Locally

Ore body information

  • General form LENTICULAR BODIES
    Strike N 60-65 W
    Dip N 47-73 E
  • General form LENTICULAR BODIES
    Dip N 47-73 E

Controls for ore emplacement

  • Ore Is Localized Near Fault Intersections In The Relatively More Permeable, Coarser-Grained Sandstones. The Faults In The Area Have Been Numbered, And Most Of The Mineralized Sandstone And All Of The Mined Ore Deposits Are Between Faults 3 And 5, Generally Where Those Faults Are Cut By Longitudinal Faults; Changes In Dip May Have Localized Ore

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1903
Year of first production 1919

Mining district

District name Garo Area

Land status

Ownership category Private

Ownership information

  • Type Owner
    Owner W. H. Gaddis
    Home office Hartsel, Co.
    First year 1951

Production statistics

  • Year 1919
    Accuracy Estimate
    Importance Item Commodity Group Amount recovered Grade Recovery percentage
    Major Ore Uranium Uranium 1wt-pct

Comments on the production information

  • 1919 SHIPMENT TO RADIUM COMPANY OF COLORADO

Workings at the site

  • Type of workings Surface/Underground
    Area 0.032HA
    Overall length 36.58M
    Overall width 9.14M

Comments on the workings information

  • OPEN PIT MINE, SEVERAL OTHER PROSPECTS, PRIMARILY SURFACE CUTS THE DEPOSIT WAS DRILLED BY THE U.S. BUREAU OF MINES; MINED ALONG STRIKE FOR 120 FT, DOWNDIP FOR 30 FT IN PIT 1.

Reference information

Bibliographic references

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAY-1982 Collins, Donna B. 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.