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  3. Mineral Resource Data System (MRDS)

Unnamed Placer Mine

Past Producer in Moffat county in Colorado, United States with commodity Gold
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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. Economic information about the deposit and operations
  12. Mining district
  13. Land status
  14. Links to other databases
  15. Bibliographic references
  16. General comments
  17. Reporter information

Geologic information

Identification information

Deposit ID 10087791
MRDS ID D009751
Record type Site
Current site name Unnamed Placer Mine

Geographic coordinates

Geographic coordinates: -107.70622, 40.42358 (WGS84)
Elevation 1858
Location accuracy 1000(meters)
Relative position 10.5 MILES S 52 W FROM CRAIG

Site location context

Political divisions (FIPS codes)

Moffat(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Round Bottom(quadrangle 1:24,000 scale)

Meeker(quadrangle 1:100,000 scale)

Craig(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Lower Yampa(hydrologic unit)

White-Yampa(hydrologic accounting unit)

White-Yampa(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado Moffat

Public Land Survey System information

Meridian Township Range Section Fraction State
6th Principal 006N 092W 34 S2 Colorado

Comments on the location information

  • ON NORTH SIDE OF YAMPA RIVER AT ROUND BOTTOM 6 MILES NW OF HAMILTON. LAT-LONG GIVEN IS C S2 ; INFO FROM LAND.ST :(1974)

Commodities

Commodity Importance
Gold Primary

Materials information

Materials Type of material
Gold Ore

Host and associated rocks

  • Host or associated Host
    Rock type Unconsolidated Deposit > Sand and Gravel
    Rock unit name Unconsolidated Deposits--Alluvium
    Rock description Unconsolidated Deposits--Alluvium
    Stratigraphic age (youngest) Holocene
    Stratigraphic age (youngest) Holocene

Nearby scientific data

(1) -107.70622, 40.42358
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Axial Basin Arch, Washakie Basin
Type of structure Local
Structure description Round Bottom Syncline, Williams Fork Anticline

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of last production 1934

Mining district

District name Yampa River Area

Land status

Ownership category Private

Comments on development

  • MINOR PLACERING PONE IN 1932-34, YIELDING 14 OZ AU

Reference information

Bibliographic references

  • Deposit

    PARKER, B.H., JR., 1974, THE PLACERS OF MOFFAT COUNTY, IN GOLD PLACERS OF COLORADO: COLORADO SCHOOL OF MINES QUART., V. 69, NO. 4, P. 150-168.

  • Deposit

    TWETO, OGDEN, 1976, GEOLOGIC MAP OF THE CRAIG 1X2 QUADRANGLE, NORTHWESTERN COLORADO: USGS MAP I-972

General comments

Subject category Comment text
Deposit PLACER LIES IN EITHER LOW TERRACE GRAVELS OR FLOOD-PLAIN DEPOSITS ON OUTSIDE OF YAMPA RIVER MEANDER AT ROUND BOTTOM. AS THIS LIES DOWNSTREAM OF POSTULATED WILLIAMS FORK PLACERS, ORIGINAL SOURCE OF AU COULD BE MINERALIZED CRYSTALLINE ROCKS EITHER IN YAMPA RIVER HEADWATERS (PARK RANGE AND ELKHEAD MTNS) OR IN WILLIAMS FORK HEADWATERS (WHITE RIVER PLATEAU).

Reporter information

Type Date Name Affiliation Comment
Reporter 01-DEC-1982 Schwochow, Stephen D. 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.