Royal Group

Past Producer in Inyo county in California, United States with commodities Lead, Zinc, Silver, Gold, Copper

Geologic information

Identification information

Deposit ID 10076643
MRDS ID W023779
Record type Site
Current site name Royal Group
Alternate or previous names Cerro Gordo Extension, Lead Queen, Spear
Related records 10285333

Geographic coordinates

Geographic coordinates: -117.79397, 36.53829 (WGS84)
Elevation 2652
Relative position 8 MILES EAST OF KEELER
(click for info)

Geographic areas

Country State County
United States California Inyo

Public Land Survey System information

Meridian Township Range Section Fraction State
Mount Diablo 016S 038E 11,12,13,14 California

Comments on the location information

  • UTM ACC. ; INFO FROM LAND.ST :UNDETERMINED

Commodities

Commodity Importance
Lead Primary
Zinc Primary
Silver Primary
Gold Secondary
Copper Secondary

Materials information

Materials Type of material
Galena Ore
Lead Ore

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Mafic Intrusive Rock > Diorite
  • Host or associated Host
    Rock type Sedimentary Rock > Carbonate > Limestone

Nearby scientific data

(1) -117.79397, 36.53829

Geologic structures

Type of structure Local
Structure description Fault, Strikes North, Dips 70 W

Ore body information

  • Strike N 30 W
    Dip 70 W
    Thickness 0.91M

Comments on the geologic information

  • GEOL.DESC: LIMESTONE WITH BELT OF SLATES ON WEST SLOPE OF RIDGE. DIORITE PORPHYRY INTRUSIONS IN LIMESTONE, TRENDING NW ON LEAD KING AND LEAD PRINCE CLAIMS. EAST SLOPE OF RIDGE, IS A BELT OF WHITE MARBLE 300 FT. WIDE.

Economic information

Economic information about the deposit and operations

Development status Past Producer
Commodity type Metallic
Deposit size Small
Significant No
Production years 1909 - 1937

Comments on the production information

  • TOTAL PRODUCTION; $30,000 IN PB, ZN, AG, AU AND CU. LEAD ORE SHIPPED CARRIED 20 - 29 % PB AND 26 OZ AG/TON. IT IS STATED THAT 46,000 LBS ZN WAS SHIPPED, AVERAGING 39.2 % ZN.

Workings at the site

  • Type of workings Underground
    Length 320.04M
    Overall depth 60.96M

Comments on the workings information

  • 200 FT. SHAFT, 800 FT. OF DRIFTS AND A 50 FT. WINZE ON THE 200 FT. LEVEL.

Reference information

Links to other databases

Agency Database name Acronym Record ID Notes
USGS Mineral Resources Data System MRDS W023779

Bibliographic references

  • Deposit

    GOODWIN, J. G., 1957 , LEAD AND ZINC IN CALIFORNIA; CALIF. JOUR. MINES AND GEOLOGY, VOL. 53 , NO. 3 & 4 ; DIV. OF MINES, P. 507

  • Deposit

    TUCKER, W. B., 1926 , LOS ANGELES FIELD DIVISION; 22ND REPT. STATE MINERALOGIST; CALIF. MIN. BUR., P. 497 - 498

General comments

Subject category Comment text
Deposit 3 PARALLEL VEINS, VARY IN THICKNESS FROM 1 FT - 3 FT

Reporter information

Type Date Name Affiliation Comment
Reporter 01-AUG-1977 Fraticelli, L. A. (Albers, J.) U.S. Geological Survey