REF:Deposit:: OLSON, J.C., 1974, GEOLOGIC MAP OF THE RUDOLPH HILL QUADRANGLE, GUNNISON, HINSDALE, AND SAGUACHE COUNTIES, COLORADO: USGS MAP GQ-1177.
Deposit:: HEDLUND, D.C., AND OLSON, J.C., 1961, FOUR ENVIRONMENTS OF THORIUM-, NIOBIUM-, AND RARE-EARTH-BEAR
Commodities (Major) - Thorium; (Minor) - REE; (Trace) - Lead, Zinc, Copper, Niobium (Columbium)
Development Status: Occurrence
Host Rock Unit: Dubois Greenstone--Felsite And Felsite Porphyry
Structure: Gunnison Uplift, San Juan Volcanic Field, Iron Hill Alkalic Complex, Cimarron Fault, Powderhorn Stock
Host Rock: Volcanic Rock (Aphanitic), Porphyry, Schist, Amphibolite
Tectonic Structure: Central Cordillera (Southern Rocky Mtns)
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Map Reference: 38°14'55"N , 107°5'27"W
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Mineral List:15 entries listed. 11 valid minerals.
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