Trail Creek Placer

Occurrence in Beaverhead county in Montana, United States with commodities Titanium, Metal, Iron, REE, Gold
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. Controls for ore emplacement
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Links to other databases
  17. Bibliographic references
  18. General comments
  19. Reporter information

Geologic information

Identification information

Deposit ID 10010828
MRDS ID D004817
Record type Site
Current site name Trail Creek Placer

Geographic coordinates

Geographic coordinates: -113.82036, 45.66739 (WGS84)
Elevation 1920
Relative position WEST OF THE BIG HOLE BATTLEFIELD ON TRAIL CR.

Site location context

Political divisions (FIPS codes)

Beaverhead(county)

Montana(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Elk Creek(quadrangle 1:24,000 scale)

Wisdom(quadrangle 1:100,000 scale)

Dillon(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Big Hole(hydrologic unit)

Missouri Headwaters(hydrologic accounting unit)

Missouri Headwaters(hydrologic subregion)

Missouri(hydrologic region)

Federal lands

Beaverhead-Deerlodge 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 Montana Beaverhead

Public Land Survey System information

Meridian Township Range Section Fraction State
Montana Principal 001S;002S 018W;018W Montana

Comments on the location information

  • DEPOSIT IS ALONG TRAIL CREEK FOR 14 MILES ABOVE RUBY CREEK. DEPOSIT IS ALSO IN T25, R17W

Commodities

Commodity Importance
Titanium, Metal Critical Primary
Iron Primary
REE Critical Secondary
Gold Secondary

Materials information

Materials Type of material
Gold Ore
Ilmenite Ore
Magnetite Ore
Monazite Ore
Allanite Gangue
Epidote Gangue
Garnet Gangue
Pyrite Gangue
Sphene Gangue
Zircon Unknown

Analytical data

Result SAMPLE CONCENTRATE WAS COMPOSED OF 44.6% ILMENITE, 35.8% MAGNETITE, 2.0% MONAZITE, AND LESS THAN 2% EACH OF GARNET, EPIDOTE, PYRITE, SPHENE, ZIRCON AND ALLANITE

Host and associated rocks

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

Nearby scientific data

(1) -113.82036, 45.66739

Economic information

Geologic structures

Type of structure Regional
Structure description Idaho Batholith

Ore body information

  • Length 22530.2M
    Width 640.08M
    Depth to top 0M

Controls for ore emplacement

  • Black Sand Is Most Abundant In Coarse Gravels Above The Bedrock Clay.

Comments on the geologic information

  • ALMOST ALL OF THE SMALL AMOUNT OF GOLD FOUND BY HOLT (1964) WAS IN THE CLAY ABOVE BEDROCK.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name Pioneer District

Land status

Ownership category National Forest

Comments on the workings information

  • UPPER TRAIL CREEK WAS WORKED FOR PLACER GOLD IN 1800'S

Comments on development

  • BUR, MINES (1951) DRILLED 25 CHURN-DRILL HOLES 9 TO 33 FEET IN DEPTH, AND TOTALLING 400 FEET. ; ECON.COM: AVERAGE STREAM GRADIENT IS 0.67%. AMPLE DREDGING WATER

Reference information

Bibliographic references

  • Deposit

    MBMG MEM 26, P. 12.

  • Deposit

    USBM RI 6365, P. 26-29.

  • Deposit

    USBM IC 8268

  • Deposit

    1964 DIREXP U.S. BUREAU OF MINES, R.I. 636

General comments

Subject category Comment text
Deposit AREA COVERED BY DEPOSIT IS OVER 14 MILES LONG, AND 50-700 YARDS WIDE. BEDROCK WAS REACHED AT BETWEEN 8 AND 30 FEET DEPTH.
Deposit PLACER GOLD PRODUCTION IS REPORTED FROM MAY CREEK, A HEADWATERS TRIBUTARY, AND DURING 1938 PLACER CREEK WAS BEING MINED WITH A DRAGLINE SHOVEL (LYDEN, 1948) ; INFO.SRC : 1 PUB LIT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1980 Loen, Jeffrey S. (Pearson, Robert C.) U.S. Geological Survey

Beyond USGS

Supplemental information added by qvyshift.com. Not part of the original USGS MRDS record.