Powellite from Montana, USA


USA
Montana Beaverhead County Baldy Mountain Mining District ⓘ Hazel Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Little Hawk Mine (Dyer Creek Tungsten; Bartholdi ?)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lost Creek Mining District ⓘ Ivanhoe Mine (Browne's Lake Mine)	(2005) Mineral Resources Data System (MRDS), US Geological Survey. Ref: Montana Bureau of Mines and Gology Special Publication 75, 1977
ⓘ Lost Creek Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Quartz Hill Mining District (Vipond Mining District) ⓘ Cannivan Gulch Prospect (Sheep Mountain Tungsten Prospect)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Sheep Mountain Prospects	Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825
Rock Creek Mining District ⓘ Fluorescent Claims (Star Claims; Mammoth Adit)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Utopia Mining District (Birch Creek Mining District) ⓘ Birch Creek Iron Prospect (Jumbo)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Gold Nugget Claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Greenstone Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
ⓘ Haggerty Claim	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Granite County Philipsburg Mining District (Flint Creek Mining District) ⓘ North Star Prospect	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Red Lion Mining District ⓘ Twin Peaks Mine	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Jefferson County Boulder Batholith Boulder Mining District ⓘ Nickelodeon occurrence	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Pipestone Mining District ⓘ Scheelite & Aplite Claims	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Lewis and Clark County Marysville Mining District ⓘ Drumlummon Mine (Marysville Mine; Drumlin Tailings)	Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 Chris Tucker and John Betts specimens.
Madison County Mineral Hill Mining District (Pony Mining District) ⓘ Boss Tweed Mine	Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 Chris Tucker and John Betts specimens.
ⓘ North Willow Creek	(2005) Mineral Resources Data System (MRDS), US Geological Survey.
Powell County ⓘ Pat's Gulch	Gobla, Michael J. (2012) Montana Mineral Locality Index. Rocks & Minerals, 87 (3) 208-240 doi:10.1080/00357529.2012.676825 Chris Tucker and John Betts specimens.
Silver Bow County Butte Mining District (Summit Valley Mining District) ⓘ Continental Pit	Singer, D.A., Berger, V.I., Moring, B.C. (2008) Porphyry copper deposits of the world: Database and grade and tonnage models, 2008. Open-File Report 2008-1155
Highland Mining District (Siberia Mining District) ⓘ Overlook Occurrence (Denny Prospect; Iron Cliff)	(2005) Mineral Resources Data System (MRDS), US Geological Survey.

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