Robert Burns Claim

Site Name

Primary: Robert Burns Claim
Secondary: Claim: Robert Burns
Secondary: Ms 9932

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Commodity

Primary: Silver
Primary: Zinc
Primary: Lead
Secondary: Gold
Secondary: Copper
Tertiary: Bismuth

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Location

State: Colorado
County: Rio Grande
District: Crater District

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Land Status

Land ownership: National Forest
Note: the land ownership field only identifies whether the area the mine is in is generally on public lands like Forest Service or BLM land, or if it is in an area that is generally private property. It does not definitively identify property status, nor does it indicate claim status or whether an area is open to prospecting. Always respect private property.
Administrative Organization: San Juan N. F.

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Holdings

Not available

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Workings

Type: Underground

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Ownership

Not available

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Production

Not available

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Deposit

Record Type: Site
Operation Category: Occurrence
Deposit Type: Vein
Operation Type: Unknown
Discovery Year: 1895
Discovery Method: Ore-Mineral In Place
Years of Production:
Organization:
Significant: N
Deposit Size: S

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Physiography

General Physiographic Area: Rocky Mountain System
Physiographic Province: Southern Rocky Mountains

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Mineral Deposit Model

Model Name: Polymetallic veins

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Orebody

Not available

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Structure

Type: R
Description: San Juan Volcanic Field

Type: L
Description: Platoro Caldera, Crater Creek Stock, Elwood Creek Fault Zone

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Alterations

Alteration Type: L
Alteration Text: Hydrothermal

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Rocks

Name: Rhyodacite
Role: Associated
Age Type: Host Rock
Age Young: Oligocene

Name: Rhyodacite
Role: Associated
Age Type: Associated Rock
Age Young: Miocene

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Analytical Data

Analytical Data: GRAB SAMPLE FROM DUMP CONTAINED 0.06 OZ/TON AU, 1.0 OZ/TON AG, 1.0% PB, 4.0% ZN, 0.008% CU, 0.005% BI. SPECIMEN SAMPLE FROM DUMP CONTAINED 0.04 OZ/TON AU, 3.4 OZ/TON AG, 5.0% PB, 4.0% ZN, 0.06% CU, 0.2% BI, 0.6% BA.

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Materials

Ore: Sphalerite
Ore: Pyrite
Gangue: Limonite
Gangue: Calcite

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Comments

Comment (Location): (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). APPROX 0.15 MILE DUE EAST OF CONFLUENCE OF ELWOOD CREEK AND CRATER CREEK (EAST FORK SAN JUAN RIVER). BLM MINERAL SURVEY SHOWS CLAIM LYING WITHIN SEC. 31, BUT LINDQUIST'S MAP SHOWS OVERLAP INTO SEC. 36 (MINERAL CO.) ; INFO FROM LAND.ST :1975

Comment (Workings): CAVED ADIT

Comment (Deposit): WITHIN WESTERN LOBE OF EOLUS GRANITE BATHOLITH IS INTRUDED TRIMBLE GRANITE STOCK. CHICAGO BASIN STOCK, WHICH INTRUDES EOLUS GRANITE, IS COMPOSITE, HYPABYSSAL INTRUSIVE OF SILICIC TO INTERMEDIATE COMPOSITION. OLDER PORTION IS GRANITE OR QUARTZ PORPHYRY INTENSELY ALTERED TO QUARTZ-SERICITE-KAOLINITE AND KAOLINITE-DICKITE-PYROPHYLLITE AND IS CHARACTERIZED BY DISSEMINATED PYRITE WITH MOLYBDENITE IN VEINLETS AND DISSEMINATED IN POCKETS OF ALTERATION MINERALS. INNER YOUNGER RHYOLITE PORPHYRY PHASE LESS INTENSELY ALTERED. SEMIQUANTITATIVE SPECTROGRAPHIC AND CHEMICAL ANALYSES SHOW OLDER PORPHYRY PHASE ANOMALOUS IN AS, SB, BI, MO, AND SN ON WEST SIDE, IN ADDITION TO ANOMALOUS AG AND BASE METALS. YOUNGER PHASE SHOWS WEAK SCATTERED ANOMALIES IN AG, MO, PB, AND ZN WITH OUTER MARGIN MORE METALLIFEROUS THAN CENTER. ORE METALS FOUND IN QUARTZ-PYRITE VEINS IN TWO FRACTURE/FAULT SYSTEMS: 1) RADIAL SYSTEM CENTERED ON CHICAGO BASIN STOCK, AND 2) RECTANGULAR REGIONAL SYSTEM OF RELATIVELY CONTINUOUS

Comment (Deposit): 15240); (DURYEA NO. 2, MS 15240); (JENNIE V., MS 16723); (COVINGITON NOS. 1-2, MS 17469); (HEAD LIGHT, MS 17469); (NEGLECTED, MS 17666); (GOOD LUCK, MS 18304); (GOOD HOPE, MS 18304); (PROSPERITY, MS 18304); (SUCCESS, MS 18304); (SUCCESS, MS 18304); (ENTERPRISE, MS 18305); (PURITAN, MS 18306); (RATTLER, MS 18768); (PHOENIX, MS 18973); (PHOENIX NOS. 2-3, MS 18973); (APACHE, MS 19158); (IORN VALLEY, MS 19158); (SHERIDAN, MS 19258); (JENNIE HAYES, MS 19425); (ST. PAUL, MS 20132)

Comment (Deposit): FLUORITE FILLING VUGS AND LATE FRACTURES. ORE SHOOTS SEEM LIMITED TO LOCAL AREAS OF INTRAMINERALIZATION AND FRACTURING SEPARATED BY STRETCHES OF LOW-GRADE EARLY QUARTZ-PYRITE.

Comment (Deposit): 1749); (ANNA, MS 1750); (CROSS, MS 1761); (BLACK MONSTER, MS 1762); (DRUMMOND, MS 1763); (BABY GIANT, MS 1764); (WHITON, MS 1765); (ADNA ANDERSON, MS 1766); (PACIFIC, MS 1767); (ATLANTIC, MS 1768); (MOUNTAIN KING, MS 1769); (BRUIN, MS 1770); (PLEIADES, MS 1771); (JOSE M. MUNOZ, MS 1772); (NORTHERN, MS 1773); (CROWN, MS 1774); (JUNO, MS 1809); (KANGAROO, MS 1810); (ZULU, MS 1811); (E.N. WHITON PLACER, MS 1866); (MAID OF THE MIST, MS 1867); (NEEDLE MOUNTAIN MOTHER EXTENSION, MS 1868); (MORTON, MS 1898); (SOUTHERN CROSS, MS 2086); (CHIEF OF THE NEEDLES, MS 2220); (WOOD, MS 2221); (LORD BALTIMORE, MS 2222); (SOUTHERN AURORA, MS 2223); (NORTHERN AURORA, MS 2224A); (NORTHERN AURORA MILL SITE, MS 2224B); (BUELL, MS 2225); (ORIENT, MS 2228); (BELCHER, MS 2233); CHAMPLAIN, MS 2234); (SENATOR, MS 2235); (LONGFELLOW, MS 2237); (AETNA, MS 2354); (TRUCKEE, MS 2607); (AZTEC, MS 2608); (PUEBLO, MS 2609); (WALL STREET, MS 2610); (SNOW BALL, MS 2622); (ILLINOIS, MS 2664); (MCCAULEY, MS 2664); (VALLEY

Comment (Development): MAPPING, STREAM-SEDIMENT AND ROCK SAMPLE ANALYSIS, AND MINERAL EVALUATION FOR HEAVY METALS PROGRAM AND WILDERNESS AREA APPRAISAL.

Comment (Deposit): VIEW, MS 4519); (LITTLE JIM, MS 4520); (SOUTHERN CROSS, MS 4520); (E.A.K., MS 4520); (GREAT WESTERN, MS 5617); (STAR, MS 5619); (EUREKA, MS 5620); (ELLA V., MS 13657); (VEGA, MS 13657); (GRAND PRIZE NO. 1, MS 13886); (VICTOR, MS 13886); GOLDEN CROSS NO. 1, MS 14152A); (GOLDEN NEEDLE, MS 14152A); (AIR LINE, MS 14152A); (GOLDEN SLIPPER NOS. 1-2, MS 14152A); (GOLDEN CROSS MILL SITE, MS 14152B); (AZTEC, MS 14379); (REPUBLIC, MS 14379); (BLACK HORSE JR., MS 14419); (BLACK HORSE JR. EXTENSION, MS 14419); (CHAMPION, MS 1420); (OLE W, MS 14420); (PIERMONT, MS 14420); (RHODODENDRON, MS 14420); SIDNEY CARTON, MS 14420); (SWARTWOUT, MS 14420); (EMERALD LAKE NOS. 1-5, MS 14476A); (EMERALD LAKE MILL SITE, MS 14476B); (GREEN RIVER, MS 15230); (GRAND VIEW, MS 15230); (CLIMAX, MS 15230); (TIP TOP, MS 15230); (AMERICAN, MS 15231); (SIDELINE, MS 15231); (CROWN, MS 15231); (WASHINGTON, MS 15231); (HOME STAKE, MS 15239); (RETRIBUTION, MS 15233); (JUMBO, MS 15240); (JUMBO NOS. 2-3, MS 15240); (DURYEA, MS

Comment (Workings): MINES DEVELOPED MOSTLY BY ADITS AND DRIFT TUNNELS DIRECTLY INTO VEINS OR AS CROSSCUTS TO VEINS FROM STEEP HILLSIDES; SHAFTS ON FLATTER GROUND IN VALLECITO BASIN AND EAST SILVER MESA; SURFACE PROSPECT PITS

Comment (Location): (LAND STATUS AND ADMINISTRATIVE AREA LOCATIONS CALCULATED USING GIS OVERLAY ANALYSIS FOR SAN JUAN N. F.). DISTRICT LIES WITHIN NEEDLE MTNS AND INCLUDES 1) NEEDLE CREEK VALLEY FROM HEADWATERS AT CHICAGO BASIN DOWNSTREAM TO CONFLUENCE WITH ANIMAS RIVER AT NEEDLETON; 2) UPPER FLORIDA RIVER DRAINAGE INCLUDING LILLIE LAKE, CRYSTAL VALLEY, MISSOURI GULCH, EAST AND WEST SILVER MESAS, MT KENNEDY, TRIMBLE PASS, AND AZTEC, BULLION, AND FLORIDA MOUNTAINS; 3) UPPER JOHNSON CREEK DRAINAGE (VALLECITO BASIN) INCLUDING HAZEL LAKE, COLUMBINE LAKE, HOPE, JUPITER, AND ECHO MOUNTAINS, GRIZZLY AND MCCAULEY PEAKS, AND UPPER GRIZZLY GULCH (BOTH IN DRAINAGE AREA 14080101). DISTRICT EXTENDS ONTO MOUNTAIN VIEW CREST (1973) QUAD. CLAIMS EXTEND INTO SEC. 06, T38N, R6W. ACCESSIBLE VIA TRAILS UP VALLECITO CREEK AND JOHNSON CREEK NORTH FROM VALLECITO RESERVOIR; VIA TRAIL UP NEEDLE CREEK FROM ANIMAS RIVER AND D&RGW RR; VIA EAST FLORIDA ROAD AND TRAIL NE FROM FLORIDA RIVER AND LEMON RESERVOIR; VIA ROAD AND TRAIL NE

Comment (Deposit): PATENTED CLAIMS: (BLACK HORSE, MS 427); (HERCULES, MS 428); (MOONSTONE, MS 429); (ALLIE DAVIS, MS 430); (RED ROVER, MS 431); (PEKIN, MS 432); (BLACK EAGLE, MS 433); (JUDSON, MS 950); (CABIN HOME, MS 951); (FLORIDA, MS 952); (KAFFIR, MS 953); (PLOW BOY, MS 954); (CORNUCOPIA, MS 955); (MAYFLOWER, MS 956); (LINCOLN, MS 1273); (LINCOLN NO. 2, MS 1274); (LINCOLN NO. 3, MS 1275); (LINCOLN NO. 4, MS 1276); (LUCKY BOY, MS 1277); (WABASH, MS 1278); (IOWA, MS 1326); (CLIPPER, MS 1327); (ECLIPSE, MS 1328); (SILVER WING, MS 1329); (NEEDLE MOUNTAIN PLACER, MS 1330); (NORTHERN CHIEF, MS 1434); (GRANBY, MS 1530); (LILLIE, MS 1531); (R.R., MS 1532); (BLACK GIANT JR., MS 1608); (BLACK GIANT, MS 1609); (SUNNY SIDE, MS 1610); (TREASURE VAULT, MS 1611); (CANTON, MS 1612); (MONITOR, MS 1613); (NEEDLETON PLACER, MS 1614); (POTOSI, MS 1615); (RED CAP, MS 1616); (NEEDLE MOUNTAIN MOTHER, MS 1723); (NORTHERN EXTENSION, MS 1724); (ECONOMY, MS 1746); (KNICKERBOCKER, MS 1747); (STANLEY, MS 1748); (TEMPEST, MS

Comment (Location): FROM HERMOSA UP COON CREEK, CANYON CREEK, AND OVER LIME MESA EAST TO WEST SILVER MESA. ELEV AND LAT-LONG GIVEN ARE FOR COLUMBINE PASS (SW SE SEC. 35, T39N, R7W). ; INFO FROM LAND.ST :(1977)

Comment (Commodity): GEOCHEMICAL ANALYSES SHOW ANOMALOUS TRACE CONCENTRATIONS OF AS, SB, BI, SN, W, AND CD

Comment (Deposit): EAST-WEST-AND RELATIVELY DISCONTINUOUS NNW-SSE-TRENDING FRACTURES.ALL DIP STEEPLY TO VERTICAL. VEINS IN REGIONAL SYSTEM MOST ABUNDANT IN 2-MILE-WIDE ZONE FROM CHICAGO BASIN TO EAST SILVER MESA. AS CLASSIFIED BY CROSS AND OTHERS (1905), VEINS CUTTING GRANITES ARE UNMODIFIED TYPE, CONSISTING OF GANGUE AND ORES FILLING OPEN SPACES. VEINS CUTTING IRVING FM METAMORPHICS IN LOWER NEEDLE CREEK VALLEY ARE MOFIFIED TYPE, WITH MINERALIZATION BY REPLACEMENT IN SHEETED ZONES OF NUMEROUS THIN QUARTZ VEINLETS. INTERSECTING ZONES FORM STOCKWORK-TYPEDEPOSIT. PARAGENESIS SHOWS THREE STAGES OF DEPOSITION: 1) EARLYFINE-GRAINED, MASSIVE QUARTZ AND PYRITE WITH MINOR AU AND AG; 2) FRACTURING AND LOCAL DEPOSITION IN PERMEABLE SHOOTS OF COARSE-GRAINED PYRITE WITH EARLY CADMIC SPHALERITE, LATER GALENA, CHALCOPYRITE, SUBORDINATE TETRAHEDRITE, BORNITE, ENARGITE, COVELLITE, COLUSITE (?), STEPHANITE OR POLYBASITE, RHODOCHROSITE, MINOR CALCITE AND BARITE, LATE QUARTZ AND FLUORITE; 3) LATE COMB QUARTZ AND MINOR

Comment (Development): LITTLE AVAILABLE HISTORIC INFORMATION ABOUT DISTRICT. FIRST PATENTED CLAIMS SURVEYED 1880-81 IN COLUMBINE PASS-COLUMBINE LAKE AREA, THEN PROLIFERATION OF SURVEYS IN 1883 IN SAME AREA, AT JUPITER PEAK-GRIZZLY PEAK, AT AZTEC MTN, AND ON EAST SIDE OF CRYSTAL VALLEY. NEXT GROUP OF SURVEYS IN 1886-87 INCLUDED TRIMBLE PASS AND WEST SIDE OF CRYSTAL VALLEY, UPPER EAST SILVER MESA, UPPER CHICAGO BASIN. LAST MAJOR GROUP OF SURVEYS WAS IN 1900-13 AND INCLUDED AZTEC MTN-BULLION MTN, MIDDLE CHICAGO BASIN, EMERALD LAKE AREA, AND LOWER NEEDLE CREEK. DISCOVERIES MADE PROBABLY AT OR SLIGHTLY LATER THAN THOSE IN LA PLATA MTNS. MINT REPORT FOR 1882 CITED DEVELOPMENT OF THE 2-YR-OLD DISTRICT BUT NO PRODUCTION. MOST PRODUCTION PROBABLY REALIZED BEFORE 1900. USBM MINERAL YEARBOOKS CITE SMALL PRODUCTION IN 1905, 1906, 1917, 1935 AND 1936 (LAST YEAR REPORTED). GEOCHEMICAL SURVEYING FOR MO AND CORE DRILLING IN 1960 BY AMAX REVEALED NO ORE-GRADE CONCENTRATIONS. IN 1965-68 USGS AND USBM COMPLETED GEOLOGIC

Comment (Deposit): MOST CLAIMS WERE ASSIGNED DISTRICT NAME OF "MEDDLE MOUNTAIN", BUT THOSE IN S2 SEC. 12 AND SEC. 13 WERE ASSIGNED NAME OF "FLORIDA". ANOTHER PORTION OF DISTRICT APPARENTLY AT ONE TIME WAS KNOWN AS "VALLECITO", BUT EXACT AREA OF CLAIMS UNKNOWN. INDIVIDUAL RECORDS PREPARED FOR PRINCIPAL MINES ON RADIAL VEINS AND REGIONAL RECTANGULAR VEINS IN BOTH GRANITICS AND METAMORPHICS (AETNA, APACHE, AZTEC, BLACK GIANT, BLACK HORSE, BROOKLYN, EMERALD LAKE, EUREKA, JENNIE HAYES, LITTLE JIM, MASTADON, MT EOLUS, PITTSBURG, SHERIDAN, WATERFALL); RECORDS ALSO PREPARED FOR NOTED MN PROSPECT (CASON MANGANESE PROSPECT), AND NOTED MO OCCURRENCES (OREGON CLAIMS, CHICAGO BASIN DISSEMINATED MOLYBDENUM DEPOSIT). ADDITIONAL REFERENCE: (11) SCOTT, D.C., 1983, MINERAL INVESTIGATION OF WEST NEEDLE WILDERNESS STUDY AREA, LA PLATA AND SAN JUAN COUNTIES, COLORADO: USBM MLA 35-83, P. 6, 26-35. ; INFO.SRC : 1 PUB LIT; 2 UNPUB REPT

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References

Reference (Deposit): LINDQUIST, A.E., 1977, METALLIC AND COAL RESOURCES, IN MINERAL RESOURCES OF THE CHAMA-SOUTHERN SAN JUAN MOUNTAINS WILDERNESS STUDY AREA, MINERAL, RIO GRANDE, ARCHULETA, AND CONEJOS COUNTIES, COLORADO: USGS OPEN-FILE REPT. 77-309.

Reference (Deposit): LIPMAN, P.W., 1974, GEOLOGIC MAP OF THE PLATORO CALDERA AREA, SOUTHEASTERN SAN JUAN MOUNTAINS, SOUTHWESTERN COLORADO: USGS MAP I-828.

Reference (Deposit): BLM MINERAL SURVEY MS 9932

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