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Unnamed Thorium Prospect

Occurrence in Gunnison county in Colorado, United States with commodities Thorium, Copper, Lead, Zinc, REE
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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. Geologic structures
  11. Controls for ore emplacement
  12. Economic information about the deposit and operations
  13. Mining district
  14. Land status
  15. Links to other databases
  16. Bibliographic references
  17. General comments
  18. Reporter information

Geologic information

Identification information

Deposit ID 10087969
MRDS ID D011397
Record type Site
Current site name Unnamed Thorium Prospect

Geographic coordinates

Geographic coordinates: -107.06229, 38.20778 (WGS84)
Elevation 2597
Relative position 24.0 MILES S 18 W FROM GUNNISON

Site location context

Political divisions (FIPS codes)

Gunnison(county)

Colorado(state)

United States(country)

North America(continent)

Land(continent)

USGS map quadrangles

Rudolph Hill(quadrangle 1:24,000 scale)

Montrose(quadrangle 1:100,000 scale)

Montrose(quadrangle 1:250,000 scale)

Hydrologic units (watersheds)

Upper Gunnison(hydrologic unit)

Gunnison(hydrologic accounting unit)

Gunnison(hydrologic subregion)

Upper Colorado(hydrologic region)

Geographic areas

Country State County
United States Colorado Gunnison

Public Land Survey System information

Meridian Township Range Section Fraction State
New Mexico 046N 002W 26 W2 OF SE OF NW OF SE Colorado

Comments on the location information

  • ALONG UNNAMED TRIBUTARY EAST OF CEBOLLA CREEK 5.05 MILES SE OF POWDERHORN AND 3.15 MILES SSW OF IRON HILL. ; INFO FROM LAND.ST :1976
  • HENSON CREEK WEST FROM LAKE CITY AND NE FROM SILVERTON UP ANIMAS RIVER AND OVER ENGINEER PASS; VIA TRAILS UP CIMARRON RIVER SOUTH FROM U.S. RTE 50. CLAIMS AND MINERALIZATION EXTEND EAST ONTO LAKE CITY (1963) QUAD, SOUTH ONTO REDCLOUD PEAK (1964) QUAD, SW ONTO HANDIES PEAK (1955) QUAD, AND WEST ONTO WETTERHORN PEAK (1963) QUAD. REDCLOUD PEAK AND HANDIES PEAK QUAD LIE ON DURANGO (1945) 1:250000 SHEET. SECTIONS LISTED INCLUDE ONLY THOSE COVERED BY PATENTED CLAIMS AND BY MARY ALICE UNPATENTED (URANIUM) CLAIMS; ADDITIONAL SECTIONS AND TOWNSHIPS INCLUDE SEC. 30 AND 31, T44N, R4W, AND SECS. 13 ND 24, T43N, R7W. ELEV AND LAT-LONG GIVEN ARE FOR APPROX CENTER OF DISTRICT AT CAPITOL CITY SITE NEAR CONFLUENCE OF HENSON CREEK ND NORTH FORK HENSON CREEK, IN SW SW SWC. O6, T43W, R5W (FORE-SHORTENED, UNSURVEYED SECTION). ; INFO FROM LAND.ST : 1977
  • DISTRICT LIES ON NORTH SIDE OF LAKE CITY CALDERA ALONG HENSON CREEK WEST OF LAKE CITY FROM ALPINE GULCH CONFLUENCE WEST TO HEADWATERS ON OURAY AND SAN JUAN COUNTY LINES. DISTRICT CONTIGUOUS WITH LAKE DISTRICT ON EAST, WITH PARK DISTRICT ON SOUTH, AND WITH UNCOMPAHGRE AND EUREKA DISTRICTS ON WEST. DISTRICT INCLUDES LOWER PORTIONS OF ALPINE GULCH, CRYSTAL CREEK, T GULCH, UTE CREEK, MODOC CREEK, NELLIE CREEK, OWL GULCH, POLE CREEK, BIG CASINO GULCH, EL PASO CREEK, COPPER GULCH, LEE SMELTER GULCH, BOULDER GULCH, SCHAFER GULCH AND HURRICANE BASIN, REDCLOUD GULCH, AND PALMETTO GULCH; MATTERHORN CREEK, YELLOWSTONE GULCH, AND MARY ALICE CREEK ALONG NORTH FORK HENSON CREEK. PROMINENT LANDMARKS INCLUDE TREASURE FALLS, CRYSTAL PEAK, UNCOMPAHGRE PEAK, MATTERHORN PEAK, WETTERHORN PEAK, BROKEN HILL, IRON BEDS, EMPIRE MOUNTAIN, SUNSHINE MOUNTAIN, SCHAFER BASIN, WOOD MOUNTAIN, GRAVEL MOUNTAIN, DOLLY VARDEN MOUNTAIN, SEIGAL MOUNTAIN, ENGINEER MOUNTAIN, AMERICAN FLATS. DISTRICT ACCESSIBLE VIA ROAD UP

Commodities

Commodity Importance
Thorium Primary
Copper Tertiary
Lead Tertiary
Zinc Critical Tertiary
REE Critical Tertiary

Comments on the commodity information

  • BASE METALS AND RARE EARTHS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Materials information

Materials Type of material
Thorite Ore
Barite Gangue
Chalcopyrite Gangue
Fluorite Gangue
Galena Gangue
Goethite Gangue
Hematite Gangue
Jasper Gangue
Magnetite Gangue
Pyrite Gangue
Quartz Gangue
Rutile Gangue
Specularite Gangue
Sphalerite Gangue

Host and associated rocks

  • Host or associated Associated
    Rock type Plutonic Rock > Granitoid > Granite
    Rock unit name Powderhorn Granite;Thorium Vein
    Rock description Powderhorn Granite;Thorium Vein
    Stratigraphic age (youngest) Neoproterozoic
    Stratigraphic age (youngest) Neoproterozoic
  • Host or associated Host
    Rock type Plutonic Rock > Granitoid > Granite

Nearby scientific data

(1) -107.06229, 38.20778
ListMap

Economic information

Geologic structures

Type of structure Regional
Structure description Gunnison Uplift, San Juan Volcanic Field
Type of structure Local
Structure description Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock

Controls for ore emplacement

  • North-South-Trending Vein Cutting Granite

Comments on the geologic information

  • OTHER MINERALS LISTED ABOVE ARE GENERAL OCCURRENCES REPORTED FOR TH VEINS IN AREA; ALL MAY NOT NECESSARILY OCCUR AT THIS SITE.

Economic information about the deposit and operations

Development status Occurrence
Commodity type Metallic
Deposit size Small
Significant No

Mining district

District name White Earth (Powderhorn) District

Land status

Ownership category Private

Comments on the workings information

  • ONE SURFACE PROSPECT PIT
  • LAGER MINES DEVELOPED BY CROSSCUT TUNNELS, VERTICAL AND INCLINED SHAFTS, WITH UP TO NINE LEVELS. SURFACE PROSPECT PITS AND TRENCHES. SEVERAL MILLS AND CONCENTRATING PLANTS, SOME ONCE CONNECTED TO MINES VIA WIRE-ROPE AERIAL TRAMWAYS.

Comments on development

  • PRECIOUS METALS PROBABLY WERE FIRST DISCOVERED IN LAKE CITY AREA THROUGH PANNING ABOUT 1842 BY MEMBER OF JOHN C. FREMONT EXOEDITION. HISTORY OF GALENA DISTRICT BEGAN WITH DISCOVERY OF UTE AND ULAY VEINS ON AUGUST 27, 1871, BY HARRY HENSON, JORL K. MULLIN, ALBERT MEAD, AND CHARLES GODWIN. DISCOVERY LED TO FIRST BOOM PERIOD IN LAKE CITY AREA. MINING DIS NIT BEGIN ON THESE VEINS UNTIL AFTER TREATY WAS SIGNED WITH UTE INDIANS IN 1874. REAL RUSH DID NOT BEGIN UNTIL UTE-ULAY MINE WAS SOLD FOR $135,00 TO CROOKE BROTHERS IN 1876. CROOKE SMELTER WAS COMPLETED AT LAKE CITY IN 1878, AND PRODUCTION FROM UTE-ILAY AND POLAR STAR MINE (UNCOMPAHGRE DISTRICT, SAN JUAN CO.) SUPPLIED SMELTER TO ITS FULL CAPACITY. EXCELSIOR MINE ALSO LOCATED IN APRIL, 1878, ALONG WITH COMPLETION OF OCEAN WAVE SMELTER. IN 1880, CONSIDERABLE WORK DONE AT PALMETTO, CAPITOL CITY, CZAR, SILVER CHORD, YELLOW MEDICINE, PRIDE OF AMERICA, VERMONT, AND OTHER PROPERTIES. BOOM REACHED CLIMAX NEAR END OF 1881, WHEN CONCENTRATING
  • WORKS WERE BUILT AT UTE-ULAY AND HIDDEN TREASURE MINES AT HENSON. CONSTRUCTION OF D&RGW RAIL LINE TO LAKE CITY CEASED. UTE-ULAY MINE SHUT DOWN IN 1883, AND CROOKE SMELTER CLOSED BY EARLY 1884. LATE IN 1880S, SHIPMENTS WERE MADE FROM REOPENED UTE-ULAY, VERMONT, YELLOW MEDICINE, AND NEWLY DISCOVERED GALLIC-VULCAN MINES. MINES PRODUCED UNTIL ABOUT 1900. DISTRICT REPORTED CONTINUOUS PRODUCTION FROM 1905 TO EARLY 1920S, AND FROM 1930S THROUGH MID 1950S. LAST PERIODS OF ACTIVITY WERE MID TO LATE 1960S AT UTE-ULAY, PRIDE OF AMERICA, AND BIG CASINO MINES, AND IN 1976-1977 AT PRIDE OF AMERICA MINE. MOST RECENT ACTIVITY WAS SOME CLEAN-UP AT UTE-ULAY MINE IN 1980.

Reference information

Bibliographic references

General comments

Subject category Comment text
Deposit THORIUM VEINS IN THIS AREA ARE ONE OF FOUR ENVIRONMENTS OF TH OCCURRENCE KNOWN IN THE POWDERHORN-IRON HILL AREA AND ARE PROBABLY RELATED TO EMPLACEMENT OF LATE PRECAMBRIAN SYENITES NORTH AND WEST OF IRON HILL AND OF YOUNGER LATE PRECAMBRIAN OR CAMBRIAN CARBONATITES AT IRON HILL. PINK TO RED ORTHOCLASE IS COMMON AS LARGE LATHS OR AS CLUSTERS OF SUBHEDRAL TO ANHEDRAL GRAINS. ADJACENT TO MOST VEINS, WALL ROCKS ARE PARTLY REPLACED BY ORTHOCLASE (FENITELIKE REPLACEMENT). VERY FINE-GRAINED THORITE IS INTERGROWN WITH FE OXIDES. FOLIATION IN GRANITE NEAR PROSPECT TRENDS GENERALLY N 55 TO 60 E, 75 TO 85 NW. SMALL VEIN TRENDS ESSENTIALLY NORTH-SOUTH.
Deposit 16172); (ANCHOR, MS 16201); (DEWEY NO. 2, MS 16374); (BRICK POMEROY, MS 16478A); (WALL STREET, MS 16478A); (AMAZON, MS 16478A); (BRICK POMEROY MILL SITE, MS 16478B); (BONANZA, MS 16479A); (MAGNOLIA, MS 16479A); (HONDEE, MS 16479A); (MATHISON, MS 16479A); (BONANZA MILL SITE, MS 16479B); (PORTLAND, MS 16573); (PRINTER BOY, MS 16573); (NORTH SIDE, MS 16573); (METEOR, MS 16573); (EL SUD, MS 16721); (EL NORTE, MS 16721); (GOODWIN, MS 16754); (GOLD MINE, MS 16817); (WHITNEY MILL SITE, MS 16992); (MIDNIGHT BELL, MS 17205); (SUNSHINE NO. 1, MS 17467); (SUNSHINE NO. 2, MS 17467); (MARY JANE, MS 17467); (WILLIAM T., MS 17467); (SNOW SLIDE, MS 17467); (SILVER LEDGE, MS 17483); (COLORADO CENTRAL, MS 17711); (CERES, MS 18010); (SATURN, MS 18011); (FINIS, MS 18011); (VENUS, MS 18011); (NEPTUNE, MS 18011); (MARS, MS 18011); (SYBDICATE, MS 18011); (JUPITER, MS 18011); (LOUISE, MS 18011); (SANTA RITA, MS 18939A); (MINERAL FARM, MS 18939A); COLUMBIA, MS 18939A); (SAN JUAN, MS 18939A)^; (ROYAL, MS
Deposit 18939A); (MINERAL FARM MILL SITE, MS 18939B); (EMPIRE, MS 19246); (BLACK PRINCE, MS 19246); (SWEET MARIW, MS 19597); (DORCHESTGER, MS 20145); (VENTURE, MS 20145); (STARLING, MS 20145); (CHICAGO NO. 2, MS 20145); (CHICAGO NO. 5, MS 20145); (CHICAGO NO. 6, MS 20145); (CHICAGO NO. 7, MS 20145); (CALCITE, MS 20166); (RUNNING, MS 20240A); (RUNNING MILL SITE, MS 20240B); (VIRGINIA, MS 20439)
Deposit THIS RECORD IS CONTINUED ON D011796 ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT
Deposit (MARY LIME, MS 1086A); (MARY LIME MILL SITE, MS 1086B); (GEORGE M. TIBBETS, MS 1087); (ROSE LIME, MS 1094A); (ROSE LIME MILL SITE, MS 1094B); FRANK ADAMS, MS 1116); (SHILOE, MS 1117); (GLADIATOR, MS 1118); (CORINTH, MS 1119); (EMPRESS, MS 1123); (ALPHA, MS 1138); (OMEGA, MS 1139); (CAPITOL CITY, MS 1148); (CAPITOL CITY NO. 2, MS 1149); (OTTOWA, MS 1206); (U.S., MS 1207); (EMPIRE, MS 1208); (HIGHLAND CHIEF, MS 1209A); (HIGHLAND CHIEF MILL SITE, MS 1209B); (HIGH MUCK A MUCK, MS 1210); (BUSHNELL, MS 1212A); (BUSHNELL MILL SITE, MS 1212B); (ULE EXTENSION, MS 1220); (FORT DONALSON, MS 1230); (MOOSE, MS 1250); (SILVER CHORD, MS 1251); (NORTH FORK PLACER, MS 1252); (WATSON, MS 1253); (LITTLE HELEN, MS 1254); (CZARINA, MS 1270); (JOHN J. CROOKE PLACER, MS 1280); (SILVER PLUME, MS 1294); (O'CONNER, MS 1295); (EMPEROR WILHELM, MS 1309); (EQUATOR, MS 1366A); (EQUATOR MILL SITE, MS 1366B); (COMPROMISE, MS 1514A); (COMPROMISE MILL SITE, MS 1514B); (INCAS, MS 1529); (LILLY, MS 1559); (LONE TREE, MS
Deposit 1625A); (LONE TREE MILL SITE, MS 1625B); (LITTLE JOHN, MS 1626A); (LITTLE JOHN MILL SITE, MS 1626B); (POSTAL, MS 1627A); (POSTAL MILL SITE, MS 1627B); (ELLWOOD, MS 1628A); (ELLWOOD MILL SITE, MS 1628B); (SYCAMORE, MS 1629); (76, MS 1630); (ARGO, MS 1637); (REVENUE, MS 1638); (GREAT EASTERN, MS 1639); (TWIN SISTERS, MS 1669); (LITTLE CASINO, MS 1700); (CHECK REGISTER, MS 1726); (NEWPORT, MS 1759); (NEWBURGH, MS 1790); (SILVER QUEEN, MS 1791); (MONTEZUMA, MS 1792); (DE SOTO, MS 1793); (HAARLEM, MS 1794); (JULIA, MS 1795); (BALLARAT, MS 1796); (SONOMA, MS 1817); (MOUNTAIN KING NO. 1, MS 1829); (MOUNTAIN KING NO. 2, MS 1830); (FANNY, MS 1839); (DICK DAWSON, MS 1860); (CZAR, MS 2008); (LITTLE HATTIE, MS 2091); (FRANK SILANCE, MS 2107); (VERMONT, MS 2489A); (DELPHI MILL SITE, MS 2489B); (ALABAMA, MS 2490A); (ALHAMBRA MILL SITE, MS 2490B); (FAIRVIEW, MS 2550); (PEARL, MS 2550); (SCOTIA, MS 2500); (UTE MILL SITE, MS 2590); (MILFORD, MS 2595); (BIG BLUE, MS 2596); (JENNIE, MS 2673); (MOUNTAIN
Deposit VIEW, MS 4922); (JUNCTION, MS 4922); (EXCELSIOR, MS 5184); (YELLOW MEDICINE, MS 5187); (MOUNTAIN BELL, MS 5187); (PRIDE OF AMERICA, MS 5306); (OPHIR, MS 5959A); (OPHIR MILL SITE, MS 5959B); (MOBILE, MS 6634); (FOREST, MS 6634); (VICKSBURG, MS 6634); (KEYSTONE STATE, MS 6644); (JESSUP, MS 7060); (AMERICAN QUEEN, MS 7847); (BLACK DIAMOND, MS 7847); (BLACK DIAMOND NO. 2, MS 7847); (BROKER, MS 11149); (FOUR ACES, MS 12130); (OTTUMWA, MS 12130); (YORKTOWN, MS 12196); (JAMESTOWN, MS 12196); (GUYANDOTTE, MS 12196); (ROANOKE, MS 12196); (NORFOLK, MS 12196); (PORTSMOUTH, MS 12196); (RICHMOND, MS 12196); (PETERSBURG, MS 12196); (NEWPORT NEWS, MS 12196); (VULCAN, MS 12227); (GALLIC, MS 12227); (SAXON, MS 12231); (CUTTER, MS 12265); (FREE LANCE, MS 12265); (REGULATOR, MS 12265); (YANKEE DOODLE, MS 12265); (LEADVILLE, MS 12265); (MAYOR OF LEADVILLE, MS 12265); (MAB, MS 12265); (AURIC, MS 12265); (MAID OF HENSON, MS 12265); (DON QUIXOTE, MS 12572); (BALTIMORE, MS 12676); (LELLIE, MS 12677); (PEARL,
Deposit MS 12860); (RUBY, MS 12860); (CASTLE, MS 13103A); (BURRO CABIN, MS 13103A); (BURRO CABIN MILL SITE, MS 13103B); (CRYSTAL, MS 13193); (INVINCIBLE, MS 13478); (PROTECTOR, MS 13478); (MCCOMBE, MS 13781); (MCCARTHY, MS 13781); (AJAX LIMITED, MS 13811); (MORO LIMITED, MS 13811); (MEAT AUGER, MS 13872); (GIMLET, MS 13872); (MCCARTHY NO. 3, MS 13975); (U. P., MS 14236); (WINNER, MS 14988); (HARD TACK, MS 14988); (HARD-TO-BEAT, MS 14988); (PORCUPINE, MS 15012); (STEELE, MS 15157); (OTIS, MS 15157); (ALBANY, MS 15157); (WINDSOR, MS 15157); (METROPOLE, MS 15157); (MCCOMBE NO. 2, MS 15157); (CROWN POINT, MS 15223); (BLUE BELL, MS 15489); (MONTREAL, MS 15494); (KLONDYKE, MS 15872); (SILVER MEDAL, MS 16034); (SILVER MEDAL NO. 2, MS 16034); (PETAPAH, MS 16034); (MYDEALY, MS 16034); (RED HORSE, MS 16072); (BOB INGERSOLL, MS 16129); (SLIDE ROCK, MS 16130); (CLARENCE W., MS 16134); (BAKER, MS 16172); (NUCINGEN, MS 16172); (F. B. H., MS 16172); (G. D. B., MS 16172); (C. F. M., MS 16172); (PUZZLE, MS
Deposit PATENTED CLAIMS: (BIG CASINO NO. 2, MS 69A); BIG CASINO MILL SITE, MS 69B); (OCEAN WAVE, MS 92); (WAVE OF THE OCEAN, MS 93); (ULE, MS 147A); (ULE MILL SITE, MS 147B); (UTE, MS 148); (DOLLY VARDEN, MS 172); (PALMETTO, MS 233); (AJAX, MS 237A); (AJAX MILL SITE, MS 237B); (SCHAFER PLACER, MS 266); (MILL SITE, MS 269); (COLORADO, MS 276); (SILVER CHORD, MS 281); (EXTENSION, MS 281); (JOAQUIN, MS 296); (RUSSELLA, MS 308); NMINER'S BANK, MS 309); (BIG HORN, MS 313); (PRINTER BOY, MS 314); (ACCIDENTAL NO. 2, MS 315); (MOUNTAIN GIANT, MS 316);(AMERICAN EAGLE, MS 317); (IRON MASK, MS 318A); (IRON MASK MILL SITE, MS 318B); (DURAL, MS 335); (LITTLE BAREFOOT, MS 338); (HIDDEN TEASURE, MS 342); (CALIFORNIA, MS 376A); (CALIFORNIA MILL SITE, MS 376B); (ST. LOUIS, MS 401); (RUBY QUEEN, MS 407A); (RUBY QUEEN MILL SITE, MS 407B); (FIRST NATIONAL BANK, MS 408A); (FIRST NATIONAL BANK MILL SITE, MS 408B); (H. M. WOODS, MS 426); (LIGHTNING STRIKER, MS 452); (CHIMNEY CORNER, MS 496); (PAYMASTER, MS 514);
Deposit (PHILADELPHIA, MS 527A); (PHILADELPHIA MILL SITE, MS 527B); (BOURBON COUNTY, MS 537); (HOFFMAN, MS 538); (FRANK HOUGH, MS 549); (CHIPMUNK, MS 637); (BLOOMINGTON, MS 660); (LAKE CITY, MS 672A); LAKE CITY MILL SITE, MS 672B); (NEW BRIGHTON, MS 673A); (NEW BRIGHTON MILL SITE, MS 673B); (EQUATOR, MS 674A); (EQUATOR MILL SITE, MS 674B); (THUNDERBOLT, MS 685A); (THUNDERBOLT, MS 685B); (ADELIA, MS 700); (MAPLE GROVE, MS 718A); (MAPLE GROVE MILL SITE, MS 718B); (MICHIGAN, MS 755); (ALPS, MS 784); (SWEET HOME, MS 785); (SILVER CROWN, MS 786); (INDEPENDENCE, MS 795); (BIG CASINO NO. 2, MS 836); (CARBONATE QUEEN, MS 851); (F. X. AUBREY, MS 852); (FLOWER OF SAN JUAN, MS 855); (ENGINEER, MS 860); (ENGINEER MOUNTAIN PLACER, MS 983A); (CARBONATE PLACER, MS 988); (DICTATOR, MS 1012); (LILLY, MS 1023); (YELLOW JACKET, MS 1031); (SARAH WOOD, MS 1036); (MONITOR, MS 1037); (POLAR QUEEN, MS 1045); (GOOD HOPE, MS 1047); (SUPERIOR, MS 1053); (CAPITOL IRON PLACER, MS 1084); (TREASURE HILL SPAR, MS 1085);

Reporter information

Type Date Name Affiliation Comment
Reporter 01-FEB-1984 Schwochow, Stephen D. Colorado Geological Survey

Beyond USGS

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

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Authoritative Colorado resources

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