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Jackalope Mine, Converse Co., Wyoming, USAi
Regional Level Types
Jackalope MineMine
Converse Co.County

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Latitude & Longitude (WGS84): 42° 57' 52'' North , 105° 25' 5'' West
Latitude & Longitude (decimal): 42.96444,-105.41806
GeoHash:G#: 9xth3jkyj
USGS MRDS Record:10157513
Locality type:Mine
Köppen climate type:BSk : Cold semi-arid (steppe) climate
Nearest Settlements:
Douglas6,531 (2017)22.9km
Rolling Hills442 (2017)35.3km
Glenrock2,598 (2017)38.7km

SHARP ET AL., 1964, USGS BULL.S.1107 & 1147
Commodities (Major) - Uranium
Development Status: Prospect

Regions containing this locality

North America PlateTectonic Plate

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.

No minerals currently recorded for this locality.

List of minerals for each chemical element

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

33.9 - 56 Ma

ID: 2841315
Wasatch Formation

Age: Eocene (33.9 - 56 Ma)

Stratigraphic Name: Wasatch Formation

Description: (Thrust Belt) Main body--Variegated red to gray, brown, and gray mudstone and sandstone; conglomeratic lenses. (in southwest Wyoming) - Drab to variegated claystone and siltstone, carbonaceous shale and coal, buff sandstone, arkose, and conglomerate. In northwestern part of Green River Basin is thick arkosic light-yellowish-tan sandstone intertonguing with pale-green to gray claystone and shale. (in east Wyoming) - Drab sandstone and drab to variegated claystone; numerous coal beds in lower part.

Comments: Original map source: Green, Gregory N., and Drouillard, Patricia H., 1994, The Digital Geologic Map of Wyoming in ARC/INFO Format: U.S. Geological Survey Open-File Report 94-0425, scale 1:500,000.

Lithology: Major:{mudstone,sandstone}, Minor:{conglomerate,claystone,siltstone,shale,coal, arkose}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Early Eocene
47.8 - 56 Ma

ID: 3219557
Wasatch Formation

Age: Eocene (47.8 - 56 Ma)

Stratigraphic Name: Wasatch Formation

Description: Lenticular interbeds of gray to light-brown, fine- to coarse-grained, locally conglomeratic, feldspathic to arkosic, cross-bedded sandstone dark- to light-gray or brown or greenish-gray shale, claystone, and siltstone. Subbituminous coal beds, lignite beds, and carbonaceous shales occur locally. Thickness of over 2400 feet (730 m) in the Powder River Basin, but only the lowermost part exposed on this quadrangle (description based on Kohout, 1957).

Reference: McLaughlin, J.F. and A.J. Ver Ploeg. Geologic Map Of The Douglas 30' X 60' Quadrangle, Converse And Platte Counties, Wyoming. Wyoming State Geological Survey Map Series 83. [158]

56 - 66 Ma

ID: 3193162
Cenozoic sedimentary rocks

Age: Paleocene (56 - 66 Ma)

Lithology: Sedimentary rocks

Reference: Chorlton, L.B. Generalized geology of the world: bedrock domains and major faults in GIS format: a small-scale world geology map with an extended geological attribute database. doi: 10.4095/223767. Geological Survey of Canada, Open File 5529. [154]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

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