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

Goff

Occurrence in Snohomish county in Washington, United States with commodities Gold, Silver, Copper
Map
XML
JSON
KML
B
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. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Land status
  16. Workings at the site
  17. Links to other databases
  18. Bibliographic references
  19. General comments
  20. Reporter information

Geologic information

Identification information

Deposit ID 10048601
MRDS ID MP00198
Record type Site
Current site name Goff

Geographic coordinates

Geographic coordinates: -121.15064, 47.98315 (WGS84)
Elevation 1707
Location accuracy 1000(meters)
Relative position ABOUT 1 MI SOUTHEAST OF BLUE LAKE, Est From Church And Others. Location Given Is Probably Close To Actual Location

Site location context

Political divisions (FIPS codes)

Snohomish(county)

Washington(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Benchmark Mountain(quadrangle 1:24,000 scale)

Skykomish River(quadrangle 1:100,000 scale)

Wenatchee(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sauk(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)

Glacier Peak Wilderness(Wilderness)

Wilderness FS(Type of land area)

FS(Federal land areas administered by FS)

Geographic areas

Country State County
United States Washington Snohomish

Public Land Survey System information

Meridian Township Range Section Fraction State
Willamette 029N 014E 30 CENTER OF E2 Washington

Comments on the location information

  • ALONG SOUTH BOUNDARY OF WILDERNESS

Commodities

Commodity Importance
Gold Primary
Silver Primary
Copper Primary

Materials information

Materials Type of material
Pyrite Ore

Alteration

  • (Local) Limonitization

Analytical data

Result COMPANY ASSAY: 2 SAMPLES FROM NARROW VEINS ASSAYED 0.01, 0.1 OZ/TON AU
Result 1.58, 13.85 OZ/TON AG
Result NONE, 7.3% CU. USBM ASSAY: MANY SAMPLES ASSAYED. MAXIMUM VALUES ARE 2.5 OZ/TON AG, 0.01 OZ/TON AU, 0.5% CU

Mineral occurrence model information

Model code 53
USGS model code 17
Deposit model name Porphyry Cu
Mark3 model number 4

Host and associated rocks

  • Host or associated Host
    Rock type Volcanic Rock (Aphanitic) > Felsic Volcanic Rock > Rhyolite
    Rock unit name Volcanic Rocks Of Cady Ridge;Volcanic Rocks Of Cady Ridge
    Rock description Volcanic Rocks Of Cady Ridge;Volcanic Rocks Of Cady Ridge

Nearby scientific data

(1) -121.15064, 47.98315
ListMap

Economic information

Ore body information

  • General form VEIN

Controls for ore emplacement

  • Fractures

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No
Discovery year 1940

Land status

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

Workings at the site

  • Type of workings Surface/Underground
    Length 60.96M
    Overall length 18.9M

Comments on the workings information

  • 4 ADITS, TRENCH, 4 PROSPECT PITS

Reference information

Bibliographic references

  • Deposit

    GRANT, A.R., 1982, SUMMARY OF ECONOMIC GEOLOGY DATA FOR THE GLACEIR PEAK WILDERNESS, CHELAN, SNOHOMISH, AND SKAGIT COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-408, P. 35.

  • Deposit

    STOTELMEYER, R.B., JOHNSON, F.L., MCHUGH, E.L., FEDERSPIEL, F.E., DENTON, D.K., JR., AND STEBBINS, S.A., 1982, MINERAL INVESTIGATION OF THE GLACIER PEAK WILDERNESS AND ADACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. BUREAU OF MINES OPEN-FILE REPORT 89-82, P. 23.

  • Deposit

    CHURCH, S.E., FORD, A.B., FLANIGAN, V.J., AND STOTELMEYER, R.B., 1984, MINERAL RESOURCE POTENTIAL OF THE GLACIER PEAK WILDERNESS AND ADJACENT AREAS, CHELAN, SKAGIT, AND SNOHOMISH COUNTIES, WASHINGTON: U.S. GEOLOGICAL SURVEY MISCELLANEOUS FIELD STUDIES MAP MF-1652-A, SCALE 1:100,000.

  • Deposit

    TABOR, R.W., FRIZZELL, V.A., JR., BOOTH, D.B., WHETTEN, J.T., WAITT, R.B., JR., AND ZARTMAN, R.E., 1982, PRELIMINARY GEOLOGIC MAP OF THE SKYKOMISH RIVER 1:100,000 QUADRANGLE, WASHINGTON: U.S. GEOLOGICAL SURVEY OPEN-FILE REPORT 82-747, SCALE 1:100,000.

General comments

Subject category Comment text
Deposit SULFIDE-BEARING SHEAR ZONES. ALTERED AREA CONVERS SEVERAL SQUARE MILES. CHURCH AND OTHERS (1984) INDICATE AREA LACKS MANY FEATURES OF TYPICAL HOT SPRINGS DEPOSITS BUT HAS SOME FEATURES SUGGESTING A PORPHYRY SYSTEM

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-92 Peterson, Jocelyn A. U.S. Geological Survey

Beyond USGS

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

Maps centered on this site