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Leopard-Jessie Lee Mine (Upper Portland Mine), Bald Mountain Mining District (Portland Mining District), Lawrence County, South Dakota, USAi
Regional Level Types
Leopard-Jessie Lee Mine (Upper Portland Mine)Mine
Bald Mountain Mining District (Portland Mining District)Mining District
Lawrence CountyCounty
South DakotaState
USACountry

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Latitude & Longitude (WGS84):
44° 20' 24'' North , 103° 50' 7'' West
Latitude & Longitude (decimal):
44.34000,-103.83528
GeoHash:
G#: 9xyhjpv7n
GRN:
N30W54
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Lead2,999 (2017)5.7km
Central City130 (2017)5.8km
Deadwood1,258 (2017)9.3km
Spearfish11,283 (2017)16.9km
North Spearfish2,285 (2017)19.1km
Mindat Locality ID:
121786
Long-form identifier:
mindat:1:2:121786:8
GUID (UUID V4):
0


REF:Deposit:: US BUREAU OF MINES, 1954 , BLACK HILLS MINERAL ATLAS, SOUTH DAKOTA: PART I, BUREAU OF MINES INFORMATION CIRCULAR 7688 .
Deposit:: SHAPIRO, L. H., AND GRIES, J. P., 1970 , ORE DEPOSITS IN ROCKS OF PALEOZOIC AND TERTIARY AGE OF THE NORTHERN BLA
Commodities (Major) - Gold; (Minor) - Silver
Deposit Type: Replacement
Development Status: Past Producer
Host Rock Unit: Schist And Quartzite, 3 Ft Coarse - Grained Rhyolite Sill

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

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


Mineral List


2 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘGold1.AA.05Au
ⓘSilver1.AA.05Ag

List of minerals for each chemical element

AgSilver
Agⓘ SilverAg
AuGold
Auⓘ GoldAu

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
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