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Groom Mine

Past Producer in Lincoln county in Nevada, United States with commodities Silver, Lead, Copper, Zinc, Gold, Barium-Barite
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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. Mineral occurrence model information
  9. Host and associated rocks
  10. Nearby scientific data
  11. Geologic structures
  12. Ore body information
  13. Controls for ore emplacement
  14. Economic information about the deposit and operations
  15. Mining district
  16. Land status
  17. Ownership information
  18. Workings at the site
  19. Links to other databases
  20. Bibliographic references
  21. General comments
  22. Reporter information

Geologic information

Identification information

Deposit ID 10072154
MRDS ID W016454
Record type Site
Current site name Groom Mine
Alternate or previous names White Lake No. 2, Conception No. 1, No. 2 Patented Claims, June, July, East Side No. 1 and No. 2, Senior, Panorama, Maria,, And Willow Claims.
Related records 10246411

Geographic coordinates

Geographic coordinates: -115.76865, 37.34579 (WGS84)
Elevation 1707
Relative position 72 MILES W-SW OF CALIENTE, 23 MILES S-SW OF TEM PIUTE

Site location context

Political divisions (FIPS codes)

Lincoln(county)

Nevada(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Groom Mine(quadrangle 1:24,000 scale)

Pahranagat Range(quadrangle 1:100,000 scale)

Caliente(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Sand Spring-Tikaboo Valleys(hydrologic unit)

Central Nevada Desert Basins(hydrologic accounting unit)

Central Nevada Desert Basins(hydrologic subregion)

Great Basin(hydrologic region)

Geographic areas

Country State County
United States Nevada Lincoln

Public Land Survey System information

Meridian Township Range Section Fraction State
07S 55E 11 14 PROJECTED FROM EAST Nevada

Comments on the location information

  • NEAR SOUTH END OF GROOM RANGE . ON US AIR FORCE GUNNERY RANGE NOW.. ON US AIR FORCE GUNNERY RANGE NOW. ; INFO FROM LAND.ST :(1982)

Commodities

Commodity Importance
Silver Primary
Lead Primary
Copper Secondary
Zinc Critical Secondary
Gold Secondary
Barium-Barite Critical Tertiary

Materials information

Materials Type of material
Anglesite Ore
Barite Ore
Chalcopyrite Ore
Sphalerite Ore
Tetrahedrite Ore
Calcite Gangue
Pyrite Gangue
Quartz Gangue
Siderite Gangue

Analytical data

Result .35% CU, 4-22% PB
Result TRACE-22% ZN, AG AVERAGES 1/3 OZ/% PB

Mineral occurrence model information

Model code 72
USGS model code 19a
Deposit model name Polymetallic replacement
Mark3 model number 47

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock
  • Host or associated Host
    Rock type Metamorphic Rock > Metasedimentary Rock > Quartzite
    Rock unit name Pioche Shale;Lyndon Limestone
    Rock description Pioche Shale;Lyndon Limestone

Nearby scientific data

(1) -115.76865, 37.34579
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Homocline, Striking N, Dipping Steeply E, Complexly Faulted Graben
Type of structure Local
Structure description Main Fault, Striking N, Dipping W

Ore body information

  • General form TABULAR
    Strike NORTH
    Dip 25-66 W
    Thickness 22.86M
    Length 609.6M
    Width 91.44M
    Depth to bottom 118.87M

Controls for ore emplacement

  • Ore In Bedded Deposits In 3 Thin Limestone Beds. Best Ore In Area 250 Feet Long Between Groom Fault & No. 3 Thrust Fault, And Along Ns Fissures; Good Ore Found In Small Ew Fractures.

Comments on the geologic information

  • ORE IN BEDDED DEPOSITS IN 3 THIN LIMESTONE BEDS. BEST ORE IN AREA 250 FEET LONG BETWEEN GROOM FAULT & NO. 3 THRUST FAULT, AND ALONG NS FISSURES; GOOD ORE FOUND IN SMALL EW FRACTURES. ORE BODIES UP TO 30 FEET WIDE

Economic information about the deposit and operations

Development status Past Producer
Commodity type Both
Deposit size Medium
Significant No
Discovery year 1864
Year of first production 1865
Year of last production 1956

Mining district

District name Groom District District

Land status

Ownership category BLM Administrative Area

Ownership information

  • Type Operator
    Owner International Mining Corp And Dan Sheahan
    First year 1956
  • Type Owner
    Owner Sheahan Family

Comments on the production information

  • PRODUCTION REPORTED FOR ENTIRE DISTRICT, CHIEFLY GROOM MINE

Comments on the reserve resource information

  • PROBABLE EXISTANCE OF DEEPER MINERALIZATION BELOW 390 FEET

Workings at the site

  • Type of workings Underground
    Overall depth 64.01M

Comments on the workings information

  • OPENED BY SHAFT & 2 ADITS. BEST ORE ABOVE 100 FOOT LEVEL

Comments on development

  • W. D. OSBORN HAD THE CLAIMS PATENTED IN 1860'S AND BUILT A SMELTER AT HIKO. HIS ENTERPRISE FAILED AND THE PATENTS REVERTED TO THE US GOVERNMENT. OSBORN AND WHEATLEY LOCATED NEW CLAIMS, TOGETHER WITH THE POCIN ESTATE INTERESTS (1920'S). IN 1915 THE PROPERTY WAS LEASED TO THOMAS MCCORMACK WHO SHIPPED ORE IN 1915, 1916, 1917. THE COMPANY RESUMED OPERATIONS IN 1922 AND SHIPPED ORE IN 1922, 1923 AND 1924. IT WAS ACQUIRED BY SHEAHAN BROS IN 1937 AND UNTIL 1942, WORKINGS WERE REHABILITATED, 50 TPD FLOTATION MILL WAS BUILT AND PRODUCTION WAS ATTEMPTED SPORADICALLY. ORE WAS SHIPPED IN 1944. PRODUCTION WAS REPORTED BY PRESS IN 1916, 1917, DEVELOPMENT IN 1929, PRODUCTION IN 1942, 1943, 1931, DEVELOPMENT IN 1936. THE MINE WAS THE SUBJECT OF A STUDY BY THE NBMG AND THE USBM IN 1944. THE GROOM MINE WAS ENGULFED BY THE USAF GUNNERY RANGE AFTER WWII.

Reference information

Bibliographic references

  • Deposit

    TSCHANTZ CM & PAMPAYAN EH, 1970, GEOLOGY AND MINERAL DEPOSITS OF LINCOLN CO., NEV BUR MINES BULL 73

  • Deposit

    BAKER, ART III, 1964, NBMG DISTRICT FILE 170, ITEM 1

  • Deposit

    DENNIS, C.J., 1924, NBMG DISTRICT FILE 170, ITEM 2.

  • Deposit

    USBM REPORT, POST-1944, NBMG DISTRICT FILE 170, ITEM 3.

  • Deposit

    LINCOLN, F.C, 1923, MINING DISTRICTS AND MINERAL RESOURCES OF NEVADA: NEVADA NEWSLETTER PUBLISHING CO., RENO, NEVADA.

  • Deposit

    WEED, W. H., 1922, THE MINES HANDBOOK, VOL XV, P. 1219.

  • Deposit

    HUMPHREY, F. L., 1945, NBMG BULL NO. 42.

  • Production

    TSCHANTZ & PAMPEYAN, 1970

General comments

Subject category Comment text
Deposit ON THE LIMESTONE/SHALE/QUARTZITE CONTACT, LARGE MASSES OF PURE WHITE QUARTZ OCCUR, MORE OR LESS CONNECTED BY QUARTZ VEINS, PARTIALLY BRECCIATED AND BROKEN. ORE OCCURS ALONG THE "GOB" INTRUSION AS WELL AS OUT ALONG BEDDING PLANES OF LIMESTONE, REPLACING IT WITH A MIXTURE OF LEAD AND SILVER MINERALS, CALCITE, SIDERITE, AND A LITTLE BARITE, TYPICALLY.

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1980 Harner, Joy L. (Roberts, Ralph J.) U.S. Geological Survey
Updater 01-SEP-1984 La Pointe, D.D. (Tingley, J.V.) U.S. Geological Survey

Beyond USGS

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

External references

Maps centered on this site

Authoritative Nevada resources

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