Terra Alta Prospect

Past Producer in Whatcom county in Washington, United States with commodities Gold, Silver
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. Mineral occurrence model information
  10. Host and associated rocks
  11. Nearby scientific data
  12. Ore body information
  13. Economic information about the deposit and operations
  14. Mining district
  15. Land status
  16. Ownership information
  17. Workings at the site
  18. Links to other databases
  19. Bibliographic references
  20. General comments
  21. Reporter information

Geologic information

Identification information

Deposit ID 10047814
MRDS ID M700098
Record type Site
Current site name Terra Alta Prospect
Related records 10181317

Geographic coordinates

Geographic coordinates: -121.61568, 48.93787 (WGS84)
Elevation 1561
Location accuracy 100(meters)
Relative position 4.5 MI NORTHEAST OF SILVER FIR CAMPGROUND; ABOUT 1.6 MI NORTHWEST OF MAMIE PASS, Accurate Based On Description Given In Moen. Location Is Shown On Topo Map By Adit Symbol

Site location context

Political divisions (FIPS codes)

Whatcom(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Mount Sefrit(quadrangle 1:24,000 scale)

Mount Baker(quadrangle 1:100,000 scale)

Concrete(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sumas River(hydrologic unit)

Puget Sound(hydrologic accounting unit)

Puget Sound(hydrologic subregion)

Pacific Northwest(hydrologic region)

Federal lands

Mt. Baker-Snoqualmie National Forest(National Forest)

National Forest FS(Type of land area)

FS(Federal land areas administered by FS)

Mount Baker Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Whatcom

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 040N 009E 22 SE4 Washington

Comments on the location information

  • UNSURVEYED.

Commodities

Commodity Importance
Gold Primary
Silver Secondary

Comments on the commodity information

  • OLD LITERATURE INDICATES PRESENCE OF SULFIDE MINERALS. NEWER LITERATURE DOES NOT MENTION SULFIDES

Materials information

Materials Type of material
Gold Ore
Pyrite Ore
Quartz Gangue

Alteration

  • (Local) Oxidation

Analytical data

Result VALUES REPORTEDLY AS HIGH AS $306/TON. SAMPLES FROM DUMP ASSAYED 0.01 OZ/TON AU, 0.01 OZ/TON AG

Mineral occurrence model information

Model code 85
USGS model code 22c
Deposit model name Polymetallic veins
Mark3 model number 46

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Phyllite
    Rock unit name Easton Metamorphic Suite, Darrington Phyllite;Easton Metamorphic Suite, Darrington Phyllite
    Rock description Easton Metamorphic Suite, Darrington Phyllite;Easton Metamorphic Suite, Darrington Phyllite

Nearby scientific data

(1) -121.61568, 48.93787

Economic information

Ore body information

  • General form VEIN
    Thickness 4.27M

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Year of first production 1925

Mining district

District name Mount Baker District

Land status

Ownership category National Wilderness
Area name In Mount Baker Wilderness In Mount Baker National Forest

Ownership information

  • Type Owner-Operator
    Owner Terra Alta Mining Co.
    First year 1902

Workings at the site

  • Type of workings Underground
    Length 185.93M

Comments on the workings information

  • 3 ADITS: 500 FT, 100 FT, 10 FT. MAIN ADIT IS UNDER CIRQUE BASIN

Reference information

Bibliographic references

  • Deposit

    HUNTTING, M.T., 1956, INVENTORY OF WASHINGTON MINERALS - PART II, METALLIC MINERALS: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 37 P. 179.

  • Deposit

    MOEN, W.S., 1969, MINES AND MINERAL DEPOSITS OF WHATCOM COUNTY, WASHINGTON: WASHINGTON DIVISION OF MINES AND GEOLOGY BULLETIN 57, P. 94.

  • Deposit

    LANDES, HENRY, THYNG, W.S., LYON, P.A., ROBERTS, MILNOR, 1902, THE METALLIFEROUS RESOURCES OF WASHINGTON, EXCEPT IRON: WASHINGTON GEOLOGICAL SURVEY ANNUAL REPORT FOR 1901, PT 2, P 82.

  • Deposit

    TABOR, R.W., HAUGERUD, R.A., BOOTH, D.B., AND BROWN, E.B., 199X, PRELIMINARY GEOLOGIC MAP OF THE MOUNT BAKER 30 X 60 MINUTE QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 9X-XXX, SCALE 1:100,000 (IN PREPARATION IN 1993).

General comments

Subject category Comment text
Deposit QUARTZ STRINGERS

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-81 Caress, Mary E. (Evarts, Russ) U.S. Geological Survey
Updater 01-DEC-91 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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