1. Mineral Resources
  2. Online Spatial Data
  3. Mineral Resource Data System (MRDS)

Mark Thomas

Occurrence in La Plata county in Colorado, United States with commodities Gold, Platinum, Mercury
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Ore body information
  12. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Land status
  15. Ownership information
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10009699
MRDS ID D002811
Record type Site
Current site name Mark Thomas

Geographic coordinates

Geographic coordinates: -107.80472, 37.4375 (WGS84)
Elevation 2012
Location accuracy 1000(meters)
Relative position ABOUT 2.25 MI NORTHEAST OF HERMOSA, Est Imated. Old Lat/Long Of This Record (37-29-00n, 107-45-30w) Is Northeast Of Cadastral Location. Cadastral Location Is Presumed Correct And Locations Now Given Are Based On That., Est Imated. Old Lat/Long Of This Record (37-29-00n, 107-45-30w) Is Northeast Of Cadastral Location. Cadastral Location Is Presumed Correct And Locations Now Given Are Based On That.

Site location context

Political divisions (FIPS codes)

La Plata(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Hermosa(quadrangle 1:24,000 scale)

Durango(quadrangle 1:100,000 scale)

Durango(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Animas(hydrologic unit)

Upper San Juan(hydrologic accounting unit)

San Juan(hydrologic subregion)

Upper Colorado(hydrologic region)

Federal lands

San Juan 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 La Plata

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 037N 009W 25,36 Colorado

Comments on the location information

  • IN SAN JUAN NATIONAL FOREST

Commodities

Commodity Importance
Gold Primary
Platinum Critical Tertiary
Mercury Tertiary

Comments on the commodity information

  • UNABLE TO FIND SOURCE OF PGE DATA (1989); SOURCE PRESUMED TO BE UNPUB DATA OF HASLER

Materials information

Materials Type of material
Gold Ore

Mineral occurrence model information

Model code 119
USGS model code 39a
Deposit model name Placer Au-PGE
Mark3 model number 54

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Alluvium
    Stratigraphic age (youngest) Pleistocene

Nearby scientific data

(1) -107.80472, 37.4375
ListMap

Economic information

Ore body information

  • General form STREAM SEDIMENT DEPOSITS

Controls for ore emplacement

  • Stream Hydraulics

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Land status

Ownership category National Forest
Area name San Juan N. F.

Ownership information

  • Type Owner-Operator
    Owner American Mining and Dredging Company
    Home office Nevada
    Year 1967
    First year 1963

Reference information

Bibliographic references

Comments on the references

  • Much detailed information can be found in the OME Docket # 6617, which is filed on the USGS website at http://minerals.usgs.gov/dockets/alldockets.htm (accessed 11-30-2012).

General comments

Subject category Comment text
Deposit NO NEW INFORMATION FOUND FOR DEPOSIT IN 1989

Reporter information

Type Date Name Affiliation Comment
Reporter 1977-06-01 Hasler, J. William U.S. Geological Survey
Updater 1989-12-01 Peterson, Jocelyn A. U.S. Geological Survey
Editor 2012-11-30 Wilson, Anna B U.S. Geological Survey OME docket # 6617 is available online from http://minerals.usgs.gov/dockets/alldockets.htm

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.