La Sal District

Montrose County, Colorado, United States

CopperSilverGoldLeadZincUraniumAntimonyArsenicManganese

⌖ Show on map USGS source ↗

Commodities

PrimaryCopper, Silver

SecondaryGold, Lead

TertiaryZinc, Uranium, Antimony, Arsenic, Manganese

Commodity typeM

Deposit

Deposit sizeS

Ore controlFault Cutting Poorly Cemented, Friable Sandstone

Materials

Ore mineralsAmalgam, Argentite, Bornite, Chrysocolla, Copper, Cuprite, Galena, Silver, Sphalerite, Tennantite

GangueBarite, Calcite, Dolomite, Kaolinite, Limonite, Pyrite, Quartz

Geology

Host rockShale,Sandstone · Wingate Sandstone;Chinle Formation

StructureParadox Basin Fold And Fault Belt, La Sal Centers, Paradox Valley Graben, Unnamed Faults

Tectonic settingColorado Platform

AlterationOxidation Of Cu Sulfides To Carbonates And Oxide

Economic & production

Development statusProducer

First production1899

Last production1975

Discovery year1896

Identification

Deposit ID10014259

MRDS IDD010955

Alternate namesHorse Shoe, MS 19163, Red Rock, MS 19163, Malachite, MS 19164, Paradox Valley District, Patented Claims: Red Chief, MS 13029a, Red Chief Mill Site, MS 13029b, Cashin, MS 13030a, Maude, MS 13030a, Titon, MS 13030a, Bennie, MS 13031a, Maude Mill Site, MS 130 31b, Sunrise, MS 16001, Cliff Dweller, MS 17486, Rainbow, MS 17487, Queen of the West, MS 18541a, Paradox, MS 18541a, Bay City, MS 18541a, Titon Mill Site, MS 13030b, Humboldt, MS 13031a, Angel, MS 13031a, White Chief, MS 18541a, General Lee, MS 18541a, Way Up, MS 18541a, Morgan, MS 18541a, Isabella, MS 18541a, Colorado, MS 18541a, Paradox Mill Site, MS 18541b, Michigan, MS 19163, Red Bird, MS 19163

RegionNA

Data scoreB

Coordinates38.3111, -108.94957

References

COFFIN, R.C., 1921, RADIUM, URANIUM, AND VANADIUM DEPOSITS OF SOUTHWESTERN COLORADO: CGS BULL. 16, P. 219-220.EMMONS, W. H., 1906, THE CASHIN MINE, MONTROSE COUNTY, COLORADO: USGS BULL. 285, P. 125-128.FISCHER, R. P., 1936, PECULIAR HYDROTHERMAL COPPER-BEARING VEINS OF THE NORTHEASTERN COLORADO PLATEAU: ECON. GEOLOGY, V. 31, NO. 6, P. 571-599.GOTT, G. B., AND ERICKSON, R. L., 1952, RECONNAISSANCE OF URANIUM AND COPPER DEPOSITS IN PARTS OF NEW MEXICO, COLORADO, UTAH, IDAHO, AND WYOMING: USGS CIRC. 219, P. 4-5.HALL, R. G., 1903, SECONDARY ENRICHMENT IN COPPER VEINS: ENG. MINING JOUR., V. 75, NO. 8, P. 288.WITHINGTON, C. F., 1955, GEOLOGIC MAP OF THE PARADOX QUADRANGLE, COLORADO: USGS MAP GQ-72.CARTER, W. D., AND GUALTIERI, J.L., 1957, LA SAL CREEK AREA, COLORADO AND UTAH, IN GEOLOGIC INVESTIGATIONS OF RADIOACTIVE DEPOSITS--SEMIANNUAL PROGESS REPORT, DECEMBER 1, 1956 TO MAY 31, 1957: AEC TEI-690, P. 84-94.WEIR,G. W., AND PUFFETT, W. P., 1981, INCOMPLETE MANUSCRIPT ON STRATIGRAPHY AND STRUCTURAL GEOLOGY AND URANIUM-VANADIUM AND COPPER DEPOSITS OF THE LISBON VALLEY AREA, UTAH-COLORADO: USGS OPEN-FILE REPT. OF-81-39.COLORADO DIV. MINES INF. REPTS. AND ANNUAL OPERATOR REPTS.BLM MINERAL SURVEYS MS 13029A&B, 13030A&B, 13031A&B, 16001, 17486, 17487, 18541A&B, 19163, 19164VANDERWILT, 1947, P. 153; COLORADO DIV. MINES ANNUAL OPERATOR REPTS.; USBM MINERAL YEARBOOKS 1946-1966; HENDERSON, 1926, P. 182.