Vote for your favorite mineral in #MinCup26! - Arsenuranylite vs. Talc
It's a pair of soft and lovely minerals as Stichtite and Talc compete for your votes.
Log InRegister
Quick Links : The Mindat ManualThe Rock H. Currier Digital LibraryMindat Newsletter [Free Download]
Home PageAbout MindatThe Mindat ManualHistory of MindatCopyright StatusWho We AreContact UsAdvertise on Mindat
Donate to MindatCorporate SponsorshipSponsor a PageSponsored PagesMindat AdvertisersAdvertise on Mindat
Learning CenterWhat is a mineral?The most common minerals on earthInformation for EducatorsMindat ArticlesThe ElementsThe Rock H. Currier Digital LibraryGeologic TimeExplore Fossils
Minerals by PropertiesMinerals by ChemistryMineral Visual ExplorerAdvanced Locality SearchRandom MineralRandom LocalitySearch by minIDLocalities Near MeSearch ArticlesSearch GlossaryMore Search Options
Search For:
Mineral Name:
Locality Name:
Keyword(s):
 
The Mindat ManualAdd a New PhotoRate PhotosLocality Edit ReportCoordinate Completion ReportAdd Glossary Item
Mining CompaniesStatisticsUsersMineral MuseumsClubs & OrganizationsMineral Shows & EventsThe Mindat DirectoryDevice SettingsThe Mineral QuizTime Machine
Photo SearchPhoto GalleriesSearch by ColorPhoto Colour ExplorerNew Photos TodayNew Photos YesterdayMembers' Photo GalleriesPast Photo of the Day GalleryPhotography

Yentna Mining District, Matanuska-Susitna Borough, Alaska, USAi
Regional Level Types
Yentna Mining DistrictMining District
Matanuska-Susitna BoroughBorough
AlaskaState
USACountry

This page is currently not sponsored. Click here to sponsor this page.
PhotosMapsSearch
09977150017272291296174.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-5.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
06083870017272291303547.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-6.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
07381030017272290419887.jpg
View of the Cheechaco Hill gold mining area, ca. 1910.

Cheechako Gulch; Chechako Gulch Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
03597530017272255758430.jpg
Native Gold

Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
05761910017272293364764.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-5.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
09246180017272293369774.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-6.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
02444620017272293375802.jpg
View of the Cheechaco Hill gold mining area, ca. 1910.

Cheechako Gulch; Chechako Gulch Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
03597530017272255758430.jpg
Native Gold

Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
00865330017272291317376.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-5.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
04962410017272291317628.jpg
View of an expedition of gold prospectors in Alaska, 1914, photo-6.

Lower Cache Creek Mine, Yentna Mining District, Matanuska-Susitna Borough, Alaska, USA
Latitude & Longitude:
62° North , 149° West (est.)
Estimate based on other nearby localities or region boundaries.
Margin of Error:
~205km
GRN:
N42W52
Type:
Mining District
Mindat Locality ID:
203094
Long-form identifier:
mindat:1:2:203094:7
GUID (UUID V4):
0


No description has been added for this locality. Can you add one?

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded from this region.


Mineral List

Mineral list contains entries from the region specified including sub-localities

40 valid minerals.

Rock Types Recorded

Note: data is currently VERY limited. Please bear with us while we work towards adding this information!

Rock list contains entries from the region specified including sub-localities

Select Rock List Type

Alphabetical List Tree Diagram

Detailed Mineral List:

ⓘ 'Apatite'
Formula: Ca5(PO4)3(Cl/F/OH)
ⓘ Arsenopyrite
Formula: FeAsS
Localities: Reported from at least 24 localities in this region.
ⓘ Azurite
Formula: Cu3(CO3)2(OH)2
ⓘ Baryte
Formula: BaSO4
ⓘ Bornite
Formula: Cu5FeS4
ⓘ Calcite
Formula: CaCO3
ⓘ Cassiterite
Formula: SnO2
Localities: Reported from at least 14 localities in this region.
ⓘ Chalcopyrite
Formula: CuFeS2
Localities: Reported from at least 35 localities in this region.
ⓘ 'Chlorite Group'
ⓘ Chromite
Formula: Fe2+Cr3+2O4
Localities: Reported from at least 7 localities in this region.
ⓘ 'Clay minerals'
ⓘ Diopside
Formula: CaMgSi2O6
ⓘ Dolomite
Formula: CaMg(CO3)2
ⓘ Epidote
Formula: (CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘ 'Feldspar Group'
ⓘ Fluorite
Formula: CaF2
ⓘ Galena
Formula: PbS
Localities: Reported from at least 9 localities in this region.
ⓘ 'Garnet Group'
Formula: X3Z2(SiO4)3
Localities: Reported from at least 12 localities in this region.
ⓘ Graphite
Formula: C
ⓘ Hematite
Formula: Fe2O3
Localities: Reported from at least 11 localities in this region.
ⓘ Hematite var. Specularite
Formula: Fe2O3
ⓘ Ilmenite
Formula: Fe2+TiO3
Localities: Reported from at least 12 localities in this region.
ⓘ 'Limonite'
ⓘ Magnetite
Formula: Fe2+Fe3+2O4
Localities: Reported from at least 20 localities in this region.
ⓘ Malachite
Formula: Cu2(CO3)(OH)2
Localities: Reported from at least 13 localities in this region.
ⓘ Marcasite
Formula: FeS2
ⓘ Molybdenite
Formula: MoS2
Localities: Reported from at least 13 localities in this region.
ⓘ 'Monazite Group'
Formula: REE(PO4)
ⓘ Muscovite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Muscovite var. Mariposite
Formula: K(Al,Cr)2(Al,Si)4O10(OH)2
ⓘ Muscovite var. Phengite
Formula: KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘ Muscovite var. Sericite
Formula: KAl2(AlSi3O10)(OH)2
ⓘ Native Copper
Formula: Cu
ⓘ Native Gold
Formula: Au
Localities: Reported from at least 58 localities in this region.
ⓘ Native Iridium
Formula: (Ir,Os,Ru)
ⓘ Native Platinum
Formula: Pt
Localities: Reported from at least 13 localities in this region.
ⓘ Pentlandite
Formula: (NixFey)Σ9S8
ⓘ Pitticite
Formula: (Fe, AsO4, H2O) (?)
ⓘ Pyrite
Formula: FeS2
Localities: Reported from at least 53 localities in this region.
ⓘ 'Pyroxene Group'
Formula: ADSi2O6
ⓘ Pyrrhotite
Formula: Fe1-xS
Localities: Reported from at least 19 localities in this region.
ⓘ Quartz
Formula: SiO2
Localities: Reported from at least 47 localities in this region.
ⓘ Quartz var. Chalcedony
Formula: SiO2
ⓘ Rutile
Formula: TiO2
ⓘ Scheelite
Formula: Ca(WO4)
Localities: Reported from at least 13 localities in this region.
ⓘ Siderite
Formula: FeCO3
ⓘ Sphalerite
Formula: ZnS
Localities: Reported from at least 8 localities in this region.
ⓘ Spinel
Formula: MgAl2O4
ⓘ Stibnite
Formula: Sb2S3
ⓘ Thorianite
Formula: ThO2
ⓘ Thorianite var. Uranothorianite
Formula: (Th,U)O2
ⓘ Titanite
Formula: CaTi(SiO4)O
ⓘ 'Tourmaline'
Formula: AD3G6 (T6O18)(BO3)3X3Z
Localities: Reported from at least 8 localities in this region.
ⓘ 'Wolframite Group'
ⓘ Wollastonite
Formula: Ca3(Si3O9)
ⓘ Zircon
Formula: Zr(SiO4)
Localities: Reported from at least 12 localities in this region.

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
ⓘNative Copper1.AA.05Cu
ⓘNative Gold1.AA.05Au
ⓘNative Iridium1.AF.10(Ir,Os,Ru)
ⓘNative Platinum1.AF.10Pt
ⓘGraphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
ⓘBornite2.BA.15Cu5FeS4
ⓘPentlandite2.BB.15(NixFey)Σ9S8
ⓘSphalerite2.CB.05aZnS
ⓘChalcopyrite2.CB.10aCuFeS2
ⓘPyrrhotite2.CC.10Fe1-xS
ⓘGalena2.CD.10PbS
ⓘStibnite2.DB.05Sb2S3
ⓘMolybdenite2.EA.30MoS2
ⓘPyrite2.EB.05aFeS2
ⓘMarcasite2.EB.10aFeS2
ⓘArsenopyrite2.EB.20FeAsS
Group 3 - Halides
ⓘFluorite3.AB.25CaF2
Group 4 - Oxides and Hydroxides
ⓘChromite4.BB.05Fe2+Cr3+2O4
ⓘMagnetite4.BB.05Fe2+Fe3+2O4
ⓘSpinel4.BB.05MgAl2O4
ⓘHematite4.CB.05Fe2O3
ⓘIlmenite4.CB.05Fe2+TiO3
ⓘHematite
var. Specularite		4.CB.05Fe2O3
ⓘQuartz
var. Chalcedony		4.DA.05SiO2
ⓘ4.DA.05SiO2
ⓘCassiterite4.DB.05SnO2
ⓘRutile4.DB.05TiO2
ⓘ'Wolframite Group'4.DB.30 va
ⓘThorianite4.DL.05ThO2
ⓘvar. Uranothorianite4.DL.05(Th,U)O2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘSiderite5.AB.05FeCO3
ⓘDolomite5.AB.10CaMg(CO3)2
ⓘAzurite5.BA.05Cu3(CO3)2(OH)2
ⓘMalachite5.BA.10Cu2(CO3)(OH)2
Group 7 - Sulphates, Chromates, Molybdates and Tungstates
ⓘBaryte7.AD.35BaSO4
ⓘScheelite7.GA.05Ca(WO4)
Group 8 - Phosphates, Arsenates and Vanadates
ⓘPitticite8.DB.05(Fe, AsO4, H2O) (?)
Group 9 - Silicates
ⓘZircon9.AD.30Zr(SiO4)
ⓘTitanite9.AG.15CaTi(SiO4)O
ⓘEpidote9.BG.05a(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
ⓘDiopside9.DA.15CaMgSi2O6
ⓘWollastonite9.DG.05Ca3(Si3O9)
ⓘMuscovite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Phengite9.EC.15KAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
ⓘvar. Sericite9.EC.15KAl2(AlSi3O10)(OH)2
ⓘvar. Mariposite9.EC.15K(Al,Cr)2(Al,Si)4O10(OH)2
Unclassified
ⓘ'Chlorite Group'-
ⓘ'Clay minerals'-
ⓘ'Feldspar Group'-
ⓘ'Limonite'-
ⓘ'Monazite Group'-REE(PO4)
ⓘ'Tourmaline'-AD3G6 (T6O18)(BO3)3X3Z
ⓘ'Pyroxene Group'-ADSi2O6
ⓘ'Garnet Group'-X3Z2(SiO4)3
ⓘ'Apatite'-Ca5(PO4)3(Cl/F/OH)

List of minerals for each chemical element

HHydrogen
Hⓘ AzuriteCu3(CO3)2(OH)2
Hⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Hⓘ MalachiteCu2(CO3)(OH)2
Hⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Hⓘ Pitticite(Fe, AsO4, H2O) (?)
Hⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Hⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Hⓘ ApatiteCa5(PO4)3(Cl/F/OH)
BBoron
Bⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
CCarbon
Cⓘ AzuriteCu3(CO3)2(OH)2
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
Cⓘ GraphiteC
Cⓘ MalachiteCu2(CO3)(OH)2
Cⓘ SideriteFeCO3
OOxygen
Oⓘ AzuriteCu3(CO3)2(OH)2
Oⓘ BaryteBaSO4
Oⓘ CalciteCaCO3
Oⓘ CassiteriteSnO2
Oⓘ Quartz var. ChalcedonySiO2
Oⓘ ChromiteFe2+Cr23+O4
Oⓘ DiopsideCaMgSi2O6
Oⓘ DolomiteCaMg(CO3)2
Oⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Oⓘ HematiteFe2O3
Oⓘ IlmeniteFe2+TiO3
Oⓘ MagnetiteFe2+Fe23+O4
Oⓘ MalachiteCu2(CO3)(OH)2
Oⓘ Monazite GroupREE(PO4)
Oⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Oⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Oⓘ Pitticite(Fe, AsO4, H2O) (?)
Oⓘ QuartzSiO2
Oⓘ RutileTiO2
Oⓘ ScheeliteCa(WO4)
Oⓘ SideriteFeCO3
Oⓘ SpinelMgAl2O4
Oⓘ ThorianiteThO2
Oⓘ TitaniteCaTi(SiO4)O
Oⓘ TourmalineAD3G6 (T6O18)(BO3)3X3Z
Oⓘ Thorianite var. Uranothorianite(Th,U)O2
Oⓘ WollastoniteCa3(Si3O9)
Oⓘ ZirconZr(SiO4)
Oⓘ Hematite var. SpeculariteFe2O3
Oⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Oⓘ Pyroxene GroupADSi2O6
Oⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Oⓘ Garnet GroupX3Z2(SiO4)3
Oⓘ ApatiteCa5(PO4)3(Cl/F/OH)
FFluorine
Fⓘ FluoriteCaF2
Fⓘ ApatiteCa5(PO4)3(Cl/F/OH)
MgMagnesium
Mgⓘ DiopsideCaMgSi2O6
Mgⓘ DolomiteCaMg(CO3)2
Mgⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Mgⓘ SpinelMgAl2O4
AlAluminium
Alⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Alⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Alⓘ SpinelMgAl2O4
Alⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Alⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
SiSilicon
Siⓘ Quartz var. ChalcedonySiO2
Siⓘ DiopsideCaMgSi2O6
Siⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Siⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Siⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Siⓘ QuartzSiO2
Siⓘ TitaniteCaTi(SiO4)O
Siⓘ WollastoniteCa3(Si3O9)
Siⓘ ZirconZr(SiO4)
Siⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Siⓘ Pyroxene GroupADSi2O6
Siⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
Siⓘ Garnet GroupX3Z2(SiO4)3
PPhosphorus
Pⓘ Monazite GroupREE(PO4)
Pⓘ ApatiteCa5(PO4)3(Cl/F/OH)
SSulfur
Sⓘ ArsenopyriteFeAsS
Sⓘ BaryteBaSO4
Sⓘ BorniteCu5FeS4
Sⓘ ChalcopyriteCuFeS2
Sⓘ GalenaPbS
Sⓘ MarcasiteFeS2
Sⓘ MolybdeniteMoS2
Sⓘ Pentlandite(NixFey)Σ9S8
Sⓘ PyriteFeS2
Sⓘ PyrrhotiteFe1-xS
Sⓘ SphaleriteZnS
Sⓘ StibniteSb2S3
ClChlorine
Clⓘ ApatiteCa5(PO4)3(Cl/F/OH)
KPotassium
Kⓘ MuscoviteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Kⓘ Muscovite var. SericiteKAl2(AlSi3O10)(OH)2
Kⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DiopsideCaMgSi2O6
Caⓘ DolomiteCaMg(CO3)2
Caⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Caⓘ FluoriteCaF2
Caⓘ ScheeliteCa(WO4)
Caⓘ TitaniteCaTi(SiO4)O
Caⓘ WollastoniteCa3(Si3O9)
Caⓘ ApatiteCa5(PO4)3(Cl/F/OH)
TiTitanium
Tiⓘ IlmeniteFe2+TiO3
Tiⓘ RutileTiO2
Tiⓘ TitaniteCaTi(SiO4)O
CrChromium
Crⓘ ChromiteFe2+Cr23+O4
Crⓘ Muscovite var. MaripositeK(Al,Cr)2(Al,Si)4O10(OH)2
FeIron
Feⓘ ArsenopyriteFeAsS
Feⓘ BorniteCu5FeS4
Feⓘ ChalcopyriteCuFeS2
Feⓘ ChromiteFe2+Cr23+O4
Feⓘ Epidote(CaCa)(AlAlFe3+)O[Si2O7][SiO4](OH)
Feⓘ HematiteFe2O3
Feⓘ IlmeniteFe2+TiO3
Feⓘ MagnetiteFe2+Fe23+O4
Feⓘ MarcasiteFeS2
Feⓘ Pentlandite(NixFey)Σ9S8
Feⓘ Muscovite var. PhengiteKAl1.5(Mg,Fe)0.5(Al0.5Si3.5O10)(OH)2
Feⓘ Pitticite(Fe, AsO4, H2O) (?)
Feⓘ PyriteFeS2
Feⓘ PyrrhotiteFe1-xS
Feⓘ SideriteFeCO3
Feⓘ Hematite var. SpeculariteFe2O3
NiNickel
Niⓘ Pentlandite(NixFey)Σ9S8
CuCopper
Cuⓘ AzuriteCu3(CO3)2(OH)2
Cuⓘ BorniteCu5FeS4
Cuⓘ ChalcopyriteCuFeS2
Cuⓘ Native CopperCu
Cuⓘ MalachiteCu2(CO3)(OH)2
ZnZinc
Znⓘ SphaleriteZnS
AsArsenic
Asⓘ ArsenopyriteFeAsS
Asⓘ Pitticite(Fe, AsO4, H2O) (?)
ZrZirconium
Zrⓘ ZirconZr(SiO4)
MoMolybdenum
Moⓘ MolybdeniteMoS2
RuRuthenium
Ruⓘ Native Iridium(Ir,Os,Ru)
SnTin
Snⓘ CassiteriteSnO2
SbAntimony
Sbⓘ StibniteSb2S3
BaBarium
Baⓘ BaryteBaSO4
WTungsten
Wⓘ ScheeliteCa(WO4)
OsOsmium
Osⓘ Native Iridium(Ir,Os,Ru)
IrIridium
Irⓘ Native Iridium(Ir,Os,Ru)
PtPlatinum
Ptⓘ Native PlatinumPt
AuGold
Auⓘ Native GoldAu
PbLead
Pbⓘ GalenaPbS
ThThorium
Thⓘ ThorianiteThO2
Thⓘ Thorianite var. Uranothorianite(Th,U)O2
UUranium
Uⓘ Thorianite var. Uranothorianite(Th,U)O2

Localities in this Region

USA
USA

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate

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.
Quick NavTopCommoditiesMineral ListRock TypesLocalities in RegionOther Regions
 
and/or  
Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: September 8, 2026 11:30:03 Page updated: August 11, 2025 17:34:07
Go to top of page