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Mugwump

Past Producer in Sierra county in California, 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. Ore body information
  11. Economic information about the deposit and operations
  12. Workings at the site
  13. Links to other databases
  14. Bibliographic references
  15. General comments
  16. Reporter information

Geologic information

Identification information

Deposit ID 10034799
MRDS ID M021717
Record type Site
Current site name Mugwump
Alternate or previous names Young America, Diamond Peak

Geographic coordinates

Geographic coordinates: -120.86131, 39.47238 (WGS84)
Elevation 1981
Relative position 3/4 MI. W OF ALLEGHANY

Site location context

Political divisions (FIPS codes)

Sierra(county)

California(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Alleghany(quadrangle 1:24,000 scale)

Truckee(quadrangle 1:100,000 scale)

Chico(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Yuba(hydrologic unit)

Lower Sacramento(hydrologic accounting unit)

Sacramento(hydrologic subregion)

California(hydrologic region)

Federal lands

Tahoe 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 California Sierra

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 019N 010E 28,33 California

Commodities

Commodity Importance
Gold Primary

Comments on the commodity information

  • AU ASSOC. WITH COARSE ARSENOPYRITE

Materials information

Materials Type of material
Gold Ore
Quartz Gangue

Host and associated rocks

  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Slate
    Stratigraphic age (youngest) Late Permian
  • Host or associated Host
    Rock type Metamorphic Rock > Metavolcanic Rock > Mafic Metamorphic Rock > Greenstone

Nearby scientific data

(1) -120.86131, 39.47238
ListMap

Economic information

Ore body information

  • Strike N
    Dip W
    Thickness 1.22M

Comments on the geologic information

  • VEIN WITH BOTH WALLS TUFFACEOUS SLATE, MAY BE DISPLACED 100 FT. BY A NORTHERLY FAULT, THOUGH IT MAY BE DISPLACED TO THE N ON A REVERSE FAULT. IN S PART OF TUNNEL FOOTWALL IS BLACK CONGLOMERATIC SLATE & THE HANNING WALL A DENSE GREEN SUPPORTEDLY ALTERED TUFF. 1 INCH - 3 FT. THICK WITH GOUGE. AT S END OF QUARTZ STRIKE CHANGES, DIP FLATTENS, QTZ. REACHES MAX. THICKNESS - 4 FT. IN UPPER LEVEL THE TUFFS OR EFFUSIVES ARE ALTERED TO WHITE CLAY, BUT DARK SLATES ARE EASILY RECONGONIZABLE. SURFACE GRAY CLAY RETAINS SCHISTOSIE STRUCTURE.

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No

Comments on the production information

  • MAJOR PRODUCTION BEFORE 1893 . TAILINGS DUMP REPORTED TO CONTAIN 50,000 - 60,000 TONS $1.50 - $2.50/TON

Workings at the site

  • Type of workings Surface/Underground
    Overall depth 38.1M

Comments on the workings information

  • 3000 FT. ADIT WITH 1300 FT. DRIFTS. SEVERAL LEVELS.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit PURCHASED IN 1893 FOR $13500 . ; INFO.SRC : 1 PUB LIT
Deposit VEIN

Reporter information

Type Date Name Affiliation Comment
Reporter 01-MAR-1979 Hayden, F. (Albers, J.) 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.