Colorado · Fremont County
Past Producer

Picnic Tree Mine

Fremont County, Colorado, United States
UraniumVanadium
⌖ Show on mapUSGS source ↗
Commodities
PrimaryUranium
SecondaryVanadium
Commodity typeM
Deposit
Model204: Sandstone U
Deposit sizeS
Orebody formTABULAR, PODS
Ore controlDeposition Controlled By Ground Water Flow Conditions And Carbonaceous Material With Associated Pyrite. Flow Was Impeded By The Fault On The Southern End Of The Echo Park Graben.
Materials
Ore mineralsCoffinite, Uraninite
GangueHematite, Limonite
Geology
Host rockClaystone,Bentonite,Tuff,Volcanic Breccia (Agglomerate) · Tallahassee Creek Conglomerate, Tallahassee Creek Ash Fall Member
Associated rockRhyolite · Wall Mountain Tuff Was Probable Principal Uranium Source
StructureThirtynine Mile Volcanic Field, Currant Creek Basin, Echo Park Graben, Paleovalleys, Fault Blocks
Tectonic settingCentral Cordillera (Southern Rocky Mountains)
AlterationOxidation; Alteration Of Feldspar To Clay
Economic & production
Development statusPast Producer
Identification
Deposit ID10013182
MRDS IDD009330
Alternate namesPicnic Tree Claims, Hall Homestead, Picnic Tree-Hall
RegionNA
Data scoreB
Coordinates38.53668, -105.52614
References
NELSON-MOORE, J.L., COLLINS, D.B., HORNBAKER, A.L., 1978, RADIOACTIVE MINERAL OCCURRENCES OF COLORADO AND BIBLIOGRAPHY: CGS BULLETIN 40, P. 151.EPIS, R.C., WOBUS, R.A., SCOTT, G.R., 1979, GEOLOGIC MAP OF THE BLACK MOUNTAIN QUADRANGLE, FREMONT AND PARK COUNTIES, COLORADO: USGS MAP I-1195, 1:62,500.DICKINSON, K.A., 1981, GEOLOGIC CONTROLS OF URAINUM MINERALIZATION IN THE TALLAHASSEE CREEK URANIUM DISTRICT, FREMONT COUNTY, COLORADO: THE MOUNTAIN GEOLOGIST, V. 18, NO. 4, P. 88-94.BABCOCK, J.A., 1980, TALLAHASSEE CREEK URANIUM DEPOSITS: DENVER REGIONAL EXPLORATION GEOLOGISTS SOCIETY GUIDEBOOK, P. 15-31.NELSON-MOORE AND OTHERS, 1978BABCOCK, 1980