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  3. Mineral Resource Data System (MRDS)

Boulder Creek

Producer in Shasta county in California, United States with commodity Molybdenum
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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. Ore body information
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10008333
MRDS ID D000389
Record type Site
Current site name Boulder Creek
Alternate or previous names Schlosser

Geographic coordinates

Geographic coordinates: -122.45082, 41.02318 (WGS84)
Relative position 17 MILES SOUTH OF DUNSMUIR

Site location context

Political divisions (FIPS codes)

Shasta(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Chicken Hawk Hill(quadrangle 1:24,000 scale)

Mount Shasta(quadrangle 1:100,000 scale)

Weed(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sacramento Headwaters(hydrologic unit)

Upper Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Geographic areas

Country State County
United States California Shasta

Public Land Survey System information

Meridian Township Range Section Fraction State
Humboldt 037N 005W 33 CENTER California

Commodities

Commodity Importance
Molybdenum Primary

Materials information

Materials Type of material
Ferrimolybdite Ore
Molybdenite Ore
Pyrite Gangue

Analytical data

Result 3.0% MOS2. ASSAYS OF 5 SAMPLES YIELDED 0.13-1.33 % MO

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Stratigraphic age (youngest) Late Cretaceous
  • Host or associated Host
    Rock type Plutonic Rock > Ultramafic Intrusive Rock > Peridotite

Nearby scientific data

(1) -122.45082, 41.02318
ListMap

Economic information

Ore body information

  • General form DISSEMINATED
    Strike N65E
    Dip 37SE

Controls for ore emplacement

  • Dike

Comments on the geologic information

  • APLITE MAY BE RELATED TO THE CASTLE CRAGS PLUTON

Economic information about the deposit and operations

Development status Producer
Commodity type Metallic
Deposit size Small
Significant No

Reference information

Bibliographic references

  • Deposit

    KIRKEMO, HAROLD, ANDERSON, C.A., CREASEY, S.C., 1965, INVESTIGATIONS OF MOLYBDENUM DEPOSITS IN THE CONTERMINOUS UNITED STATES: U.S. GEOLOGICAL SURVEY BULLETIN 1182-E, P. E41-E43.

  • Deposit

    ANDERSON, C.A., 1942, GEOLOGY OF BOULDER CREEK MOLYBDENITE MINE, SHASTA COUNTY, CALIFORNIA: U.S. GEOLOGICAL SURVEY UNPUB. REPORT.

  • Deposit

    AVERILL, C.V., 1939, MINERAL RESOURCES OF SHASTA COUNTY: CALIFORNIA JOURNAL OF MINES AND GEOLOGY, V. 35, NO. 2, P. 168-169.

General comments

Subject category Comment text
Deposit MOLYBDENUM MINERALS ARE DISSEMINATED IN APLITE DIKE. THE TYPE OF DEPOSIT IS UNKNOWN
Deposit MRDS RECORD W025264 HAS BEEN MERGED WITH THIS RECORD AND DELETED

Reporter information

Type Date Name Affiliation Comment
Reporter 01-JUL-1974 King, Robert U. U.S. Geological Survey
Updater 01-JAN-1991 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

Authoritative California resources

These are landing pages for further research — the state agencies don't currently expose per-mine deep links.