Mineral Evolution Database
Created and maintained by the Mineral Evolution Project in partnership with RRUFF and mindat.
Mineral locality data provided by mindat.org



The Mineral Evolution database is currently under development.

The goal of this page is to present localities at which the mineral is found, and estimates of the oldest possible geologic age of the minerals at these localities.


Locality Name:
Siskiyou Co., California, USA

Oldest recorded age at locality: 1430
Youngest recorded age at locality: 0

mindat Locality ID: 3573
mindat URL: http://www.mindat.org/loc-3573.html

Tectonic Settings:

Total number of sublocalities beneath "Siskiyou Co., California, USA": 2144
Total number of bottom-level sublocalities: 1871

Number of Child Localities: 23
Child Localities:
Azalea
Big Springs
Bray
Cascade Range
Coffee Creek
Croggins Mine
Dunsmuir
Dutch Creek
Edgewood
Gazelle
Grenada
Hawkinsville Area
Hornbrook
Klamath Mts
Klamathon
Low Slide Creek Occurrence
McCloud
Medicine Lake Volcano
Montague
Shasta Springs
Snowdon (Snowden)
Yreka
Yreka-Hornbrook Area

Latitude: 41°35'8"N
Longitude: 122°24'16"W
Decimal Degree (lat, lon): 41.585555555556,-122.40444444444
AThis mineral is Anthropogenic.
GThis mineral is directly dated.
BThis mineral is reported as having this age.
YThis mineral is using an age reported as an element mineralization period.
OThis mineral is using an age calculated from all data at the locality.
RThe age displayed for this mineral originates from a different, non-child locality.
PThe age displayed for this mineral is the range of ages for this mineral at all of this locality's children.
This mineral's age has not yet been recorded.

This Mineral list contains entries from this locality, including sub-localities. Minerals in bold are reported by mindat.org as occurring directly at this locality, and do not occur at any children (sublocalities) of this locality.

Elements at this locality, including sub-localities: Ag Al As Au B Ba Bi C Ca Cl Co Cr Cu F Fe H Hg Ir K Mg Mn Mo Na Ni O Pb Pt Ru S Sb Si Sn Te W Zn Zr 

Elements from minerals reported directly at this locality: As O S Si Zr 

Structural Groups for minerals in this locality: 
AmorphousAmphiboleAragoniteArsenopyriteBaryteCalciteChalcanthiteChalcopyriteChloriteChloritoid
ClayClinozoisiteCopperCorundumCovelliteCristobaliteDiasporeEpidoteFeldsparGarnet
GypsumMalachiteMicaMolybdeniteNickelineNoneNot in a structural groupOlivineOrpimentPerovskite
PyritePyroxeneQuartzRhodoniteRocksaltRutileScheeliteSerpentineSkutteruditeSphalerite
SpinelSulphurTalcTetradymiteTetrahedriteTridymiteVesuvianiteVivianiteWollastoniteZircon

82 IMA Minerals at location:
Actinolite  (*)Albite  (*)Ankerite  (*)Anthophyllite  (*)Antigorite  (*)
Aragonite  (*)Arsenopyrite  (*)Azurite  (*)Baryte  (*)Borax  (*)
Bornite  (*)Calcite  (*)Cassiterite  (*)Chalcanthite  (*)Chalcocite  (*)
Chalcopyrite  (*)Chromite  (*)Chrysotile  (*)Cinnabar  (*)Clinochlore  (*)
Copper  (*)Covellite  (*)Cristobalite  (*)Diopside  (*)Epidote  (*)
Erythrite  (*)Fayalite  (*)Galena  (*)Goethite  (*)Gold  (*)
Graphite  (*)Grossular  (*)Gypsum  (*)Halite  (*)Hausmannite  (*)
Hematite  (*)Hercynite  (*)Hessite  (*)Ice  (*)Iridium  (*)
Jadeite  (*)Kenyaite  (*)Laurite  (*)Magnesiochromite  (*)Magnesite  (*)
Magnetite  (*)Malachite  (*)Mercury  (*)Metacinnabar  (*)Molybdenite  (*)
Muscovite  (*)Natrite  (*)Opal  (*)Orpiment  (*)Ottrélite  (*)
Petzite  (*)Platinum  (*)Pyrite  (*)Pyrolusite  (*)Pyrrhotite  (*)
Quartz  (*)Realgar  (*)Rhodochrosite  (*)Rhodonite  (*)Romanèchite  (*)
Scheelite  (*)Siderite  (*)Silhydrite  (*)Skutterudite  (*)Sphalerite  (*)
Sulphur  (*)Talc  (*)Tephroite  (*)Tetradymite  (*)Tetrahedrite-(Zn)  (*)
Tremolite  (*)Tschermakite  (*)Uvarovite  (*)Vesuvianite  (*)Wollastonite  (*)
Zaratite  (*)Zircon  (*)
Mineral nameStructural GroupsIMA FormulaMax Age (Ma)Min Age (Ma)# of Sublocalities containing mineralLOCALITY IDs, not mindat ids# of localities containing mineral
Actinolite  (*)Amphibole   Ca2(Mg4.5-2.5Fe2+0.5-2.5)Si8O22(OH)216714511799523419
Albite  (*)FeldsparNa(AlSi3O8)16714511796708803
Ankerite  (*)NoneCa(Fe2+,Mg)(CO3)216714511796703092
Anthophyllite  (*)Amphibole   Mg2Mg5Si8O22(OH)22002002178294,178726718
Antigorite  (*)Serpentine ClayMg3Si2O5(OH)44651452178144,179027708
Aragonite  (*)AragoniteCa(CO3)11801043250
Arsenopyrite  (*)ArsenopyriteFeAsS16714511795819052
Azurite  (*)Not in a structural groupCu3(CO3)2(OH)21671453178380,178450,1785845509
Baryte  (*)BaryteBa(SO4)1671454178082,178084,178482,17953911547
Borax  (*)NoneNa2B4O5(OH)4·8H2O117801776
Bornite  (*)NoneCu5FeS4252664178584,178595,178780,1800605516
Calcite  (*)CalciteCa(CO3)2526610178082,178084,178675,178762,178812,178970,179539,179670,180057,18011427770
Cassiterite  (*)RutileSnO21671452178349,1784125171
Chalcanthite  (*)ChalcanthiteCu(SO4)·5H2O1671451178638925
Chalcocite  (*)NoneCu2S1671455178135,178380,178514,178532,1785845707
Chalcopyrite  (*)ChalcopyriteCuFeS22526622178135,178151,178380,178383,178388,178510,178514,178525,178528,178532,178539,178595,178638,178780,178962,179082,179539,179651,179820,179895,180057,18006027198
Chromite  (*)SpinelFe2+Cr2O446514580178142,178143,178223,178224,178225,178226,178227,178229,178233,178357,178358,178411,178452,178456,178458,178478,178493,178499,178503,178520,178527,178529,178585,178598,178606,178608,178637,178720,178794,178803,178867,178868,178885,178980,179001,179055,179093,179228,179234,179242,179244,179255,179315,179328,179386,179387,179569,179574,179576,179578,179580,179582,179583,179584,179585,179588,179589,179590,179595,179599,179600,179601,179602,179628,179629,179633,179641,179772,179873,179877,179929,179930,179999,180000,180004,180007,180008,180012,180124,1801363902
Chrysotile  (*)Serpentine ClayMg3Si2O5(OH)41671454178157,179562,179565,179932951
Cinnabar  (*)NoneHgS1671456178287,178289,178291,178675,179296,1793082600
Clinochlore  (*)Chlorite ClayMg5Al(AlSi3O10)(OH)84651459178144,178224,178241,178493,178907,179384,180005,180149,1801511756
Copper  (*)CopperCu252662179117,1800573846
Covellite  (*)CovelliteCuS16714511787804165
Cristobalite  (*)CristobaliteSiO20.5490.0294178043,178044,178082,180113453
Diopside  (*)PyroxeneCaMgSi2O611801514135
Epidote  (*)Epidote ClinozoisiteCa2(Al2Fe3+)[Si2O7][SiO4]O(OH)1671453178139,179670,1801428173
Erythrite  (*)VivianiteCo3(AsO4)2·8H2O1671451178456814
Fayalite  (*)OlivineFe2+2(SiO4)0.5490.0292178043,178044371
Galena  (*)RocksaltPbS252665178482,178812,179511,179539,18005724243
Goethite  (*)DiasporeFeO(OH)1701702178082,1798957437
Gold  (*)CopperAu16720877178015,178020,178146,178147,178148,178149,178170,178171,178172,178175,178176,178179,178184,178189,178191,178192,178194,178196,178199,178201,178205,178206,178208,178210,178213,178214,178228,178232,178236,178245,178247,178254,178255,178257,178261,178262,178263,178266,178267,178268,178273,178275,178276,178277,178278,178281,178282,178283,178285,178290,178293,178298,178299,178301,178304,178305,178306,178307,178308,178311,178312,178313,178314,178315,178316,178317,178319,178320,178321,178323,178327,178329,178330,178332,178333,178335,178336,178337,178339,178340,178342,178343,178345,178346,178347,178350,178368,178369,178373,178374,178375,178376,178378,178382,178384,178385,178387,178389,178392,178394,178395,178397,178398,178399,178402,178404,178406,178407,178413,178415,178417,178420,178424,178425,178428,178432,178436,178437,178439,178442,178445,178448,178457,178458,178459,178460,178461,178462,178466,178467,178469,178471,178473,178474,178475,178477,178485,178494,178495,178496,178497,178502,178508,178511,178512,178515,178516,178521,178526,178533,178535,178540,178545,178547,178549,178551,178552,178554,178559,178561,178563,178564,178566,178567,178570,178571,178576,178580,178582,178583,178586,178591,178592,178593,178596,178597,178602,178605,178607,178610,178611,178612,178613,178614,178616,178617,178619,178621,178622,178623,178624,178625,178628,178630,178633,178634,178641,178647,178648,178649,178650,178652,178653,178654,178655,178657,178658,178659,178661,178662,178664,178666,178667,178668,178669,178674,178677,178678,178681,178682,178683,178684,178688,178693,178694,178695,178697,178701,178703,178704,178705,178708,178711,178716,178717,178728,178731,178732,178734,178736,178739,178741,178746,178747,178749,178750,178752,178753,178754,178759,178760,178765,178767,178770,178771,178775,178777,178782,178783,178784,178785,178787,178792,178793,178795,178796,178799,178801,178809,178812,178814,178817,178819,178820,178822,178824,178825,178826,178828,178829,178831,178832,178833,178836,178837,178840,178842,178843,178844,178846,178847,178848,178849,178853,178855,178857,178858,178861,178862,178864,178873,178874,178875,178876,178879,178890,178892,178893,178895,178896,178897,178898,178899,178900,178914,178915,178916,178917,178918,178919,178920,178922,178925,178926,178928,178931,178932,178934,178935,178936,178937,178938,178940,178941,178942,178943,178946,178947,178950,178952,178955,178956,178957,178958,178959,178961,178963,178964,178966,178969,178970,178972,178973,178975,178989,178994,178995,178998,178999,179000,179002,179003,179005,179006,179007,179009,179010,179011,179012,179014,179015,179016,179018,179019,179020,179021,179022,179025,179030,179032,179034,179036,179037,179039,179040,179041,179042,179044,179045,179046,179048,179049,179050,179051,179052,179053,179054,179056,179057,179059,179061,179062,179063,179066,179067,179073,179074,179076,179085,179086,179089,179090,179091,179096,179097,179098,179099,179102,179103,179104,179108,179109,179110,179112,179113,179114,179115,179119,179120,179121,179124,179128,179129,179131,179133,179134,179137,179138,179139,179140,179144,179145,179146,179147,179148,179149,179150,179152,179153,179154,179156,179157,179158,179159,179160,179161,179164,179166,179168,179169,179171,179172,179173,179174,179175,179177,179179,179181,179182,179186,179187,179188,179189,179192,179193,179194,179195,179196,179197,179200,179201,179202,179203,179204,179206,179209,179213,179214,179216,179219,179220,179231,179232,179235,179237,179238,179239,179240,179245,179246,179247,179252,179257,179258,179259,179262,179263,179264,179265,179266,179267,179269,179271,179272,179274,179275,179276,179277,179278,179280,179282,179286,179287,179290,179292,179293,179296,179297,179299,179300,179302,179303,179304,179311,179312,179313,179314,179316,179317,179319,179320,179321,179325,179330,179331,179332,179333,179336,179338,179340,179341,179342,179343,179344,179346,179347,179348,179349,179350,179351,179352,179357,179359,179362,179364,179365,179369,179370,179372,179376,179377,179378,179379,179381,179383,179388,179390,179392,179395,179400,179401,179402,179403,179405,179409,179410,179412,179413,179414,179416,179417,179418,179419,179420,179421,179422,179423,179424,179425,179426,179427,179428,179430,179431,179432,179433,179434,179436,179437,179438,179442,179443,179447,179448,179449,179452,179453,179455,179456,179459,179460,179463,179464,179465,179466,179468,179471,179473,179474,179476,179480,179481,179482,179483,179484,179485,179486,179489,179491,179492,179494,179496,179497,179499,179501,179502,179504,179505,179506,179507,179508,179510,179511,179512,179513,179515,179516,179518,179520,179521,179526,179527,179529,179533,179534,179540,179544,179545,179546,179547,179548,179549,179552,179553,179557,179559,179560,179577,179581,179587,179591,179594,179597,179598,179611,179612,179613,179614,179617,179618,179619,179620,179635,179637,179646,179650,179653,179664,179672,179675,179677,179681,179682,179683,179686,179687,179689,179690,179691,179695,179696,179701,179702,179705,179706,179707,179709,179710,179711,179712,179713,179716,179718,179719,179720,179721,179722,179725,179727,179730,179731,179732,179733,179735,179736,179737,179740,179741,179744,179745,179755,179757,179758,179769,179781,179782,179783,179784,179786,179787,179788,179789,179793,179795,179796,179798,179799,179800,179803,179804,179805,179809,179810,179815,179816,179818,179826,179827,179831,179833,179834,179835,179837,179841,179842,179843,179844,179847,179849,179850,179851,179852,179854,179857,179858,179863,179864,179866,179868,179869,179871,179879,179887,179890,179899,179901,179903,179904,179905,179906,179907,179908,179910,179911,179912,179916,179919,179921,179922,179923,179924,179954,179955,179958,179959,179960,179963,179966,179968,179971,179976,179977,179978,179979,179980,179982,179984,179986,179987,179988,179989,179994,180014,180017,180021,180028,180029,180030,180031,180033,180034,180035,180040,180049,180050,180051,180054,180058,180066,180071,180072,180074,180076,180077,180078,180080,180081,180082,180085,180086,180087,180088,180095,180097,180099,180116,180122,180125,180128,180129,180131,180133,180134,180135,180137,180143,18014430554
Graphite  (*)NoneC1671456178719,178881,179260,179430,179668,1800112812
Grossular  (*)GarnetCa3Al2(SiO4)316714511797671544
Gypsum  (*)GypsumCa(SO4)·2H2O4178082,178084,178085,1781136890
Halite  (*)RocksaltNaCl2178013,1781021398
Hausmannite  (*)SpinelMn2+Mn3+2O41671451179458350
Hematite  (*)CorundumFe2O3170170117989514640
Hercynite  (*)SpinelFe2+Al2O40.250.0021178109407
Hessite  (*)NoneAg2Te1671451179870804
Ice  (*)Amorphous TridymiteH2O2178082,17808559
Iridium  (*)CopperIr1671453178940,179910,180087162
Jadeite  (*)PyroxeneNaAlSi2O61671451178786154
Kenyaite  (*)NoneNa2Si22O41(OH)8·6H2O11780138
Laurite  (*)PyriteRuS22001632178907,179255226
Magnesiochromite  (*)SpinelMgCr2O44651456178140,178144,178726,178907,179268,179384311
Magnesite  (*)CalciteMg(CO3)20020011787261487
Magnetite  (*)SpinelFe2+Fe3+2O4183.60321454178143,178458,178910,17975314899
Malachite  (*)MalachiteCu2(CO3)(OH)2252664178584,178595,179082,18005712537
Mercury  (*)NoneHg1671452178675,179230397
Metacinnabar  (*)SphaleriteHgS1671451178289255
Molybdenite  (*)MolybdeniteMoS2252663178135,179866,1800575800
Muscovite  (*)Mica ClayKAl2(Si3Al)O10(OH)2167145117967017380
Natrite  (*)NoneNa2(CO3)117801319
Opal  (*)AmorphousSiO2·nH2O1671454178041,178083,178150,1798852994
Orpiment  (*)OrpimentAs2S31701700511
Ottrélite  (*)ChloritoidMn2+Al2O(SiO4)(OH)2118014759
Petzite  (*)NoneAg3AuTe21671451178533409
Platinum  (*)CopperPt1671458178748,178873,178940,179383,179619,179910,180087,180088485
Pyrite  (*)PyriteFeS22526617178135,178148,178447,178514,178532,178675,178780,178812,179082,179511,179581,179587,179651,179670,179820,179895,18005739462
Pyrolusite  (*)RutileMnO21671452178082,1796433106
Pyrrhotite  (*)NickelineFe7S82526614178380,178383,178388,178456,178464,178510,178514,178523,178525,178528,178531,178534,179587,1800579056
Quartz  (*)QuartzSiO225266239178027,178135,178147,178148,178184,178191,178192,178196,178197,178199,178201,178205,178206,178213,178247,178254,178257,178261,178262,178263,178268,178276,178277,178278,178283,178298,178299,178327,178329,178330,178335,178337,178346,178374,178375,178376,178382,178389,178394,178397,178398,178399,178402,178413,178415,178417,178425,178457,178460,178495,178511,178512,178514,178515,178516,178521,178526,178535,178566,178567,178570,178622,178641,178674,178677,178682,178683,178684,178686,178711,178739,178741,178747,178749,178750,178752,178753,178762,178767,178770,178771,178777,178780,178799,178812,178820,178822,178826,178833,178843,178844,178846,178848,178849,178857,178861,178862,178969,178970,178973,179000,179020,179049,179050,179053,179057,179061,179063,179066,179097,179102,179110,179112,179113,179120,179121,179124,179128,179129,179131,179138,179144,179147,179148,179149,179152,179157,179166,179171,179172,179173,179174,179177,179201,179203,179204,179213,179214,179216,179247,179317,179362,179402,179403,179417,179418,179423,179426,179427,179430,179434,179437,179438,179442,179448,179455,179460,179464,179465,179466,179468,179471,179476,179480,179481,179483,179489,179491,179492,179494,179496,179497,179501,179506,179507,179512,179515,179518,179521,179533,179535,179538,179540,179587,179597,179598,179670,179672,179675,179677,179681,179686,179689,179691,179702,179705,179706,179707,179709,179711,179712,179716,179718,179719,179721,179722,179725,179727,179731,179733,179737,179769,179782,179786,179787,179788,179789,179795,179798,179799,179800,179805,179809,179815,179818,179847,179879,179895,179905,179957,179982,179984,179986,179988,180057,180060,180078,180095,18014361156
Realgar  (*)NoneAsS1671451179874712
Rhodochrosite  (*)CalciteMn(CO3)1671454178344,179458,179660,1797291711
Rhodonite  (*)RhodoniteCaMn3Mn(Si5O15)16714510178344,178349,178797,178985,179023,179198,179253,179445,179458,180053969
Romanèchite  (*)None(Ba,H2O)2(Mn4+,Mn3+)5O101178082312
Scheelite  (*)ScheeliteCa(WO4)16714511800964894
Siderite  (*)CalciteFe(CO3)16714511796706417
Silhydrite  (*)NoneSi3O6·H2O4178082,178086,178087,1780886
Skutterudite  (*)Skutterudite PerovskiteCoAs31671451178456531
Sphalerite  (*)SphaleriteZnS252665178532,179082,179539,179895,18005721482
Sulphur  (*)SulphurS11781132045
Talc  (*)Clay TalcMg3Si4O10(OH)22001455178726,178965,179630,179821,1798863337
Tephroite  (*)OlivineMn2+2(SiO4)1671451179458240
Tetradymite  (*)TetradymiteBi2Te2S1671451179866510
Tetrahedrite-(Zn)  (*)TetrahedriteCu6(Cu4Zn2)Sb4S1316714511795355317
Tremolite  (*)Amphibole   Ca2(Mg5.0-4.5Fe2+0.0-0.5)Si8O22(OH)220020011787262562
Tschermakite  (*)Amphibole   Ca2(Mg3Al2)(Si6Al2)O22(OH)20.5490.029117809873
Uvarovite  (*)GarnetCa3Cr2(SiO4)34651457178144,178224,178241,178493,178726,178907,180149212
Vesuvianite  (*)Vesuvianite(Ca,Na)19(Al,Mg,Fe)13(SiO4)10(Si2O7)4(OH,F,O)101671454178799,178802,179023,1797671395
Wollastonite  (*)WollastoniteCaSiO316714511799131247
Zaratite  (*)AmorphousNi3(CO3)(OH)4·4H2O167145117845656
Zircon  (*)ZirconZr(SiO4)143015705251


Locality Notes from all Ages at Locality:
Age IDLocality Notes
Jen_0000129biotite granite
Kristen002448Nevadan Orogeny includes the Kalamath Mountains


99 Ages assigned to this locality:

Excel IDMax Age (Ma)Min Age (Ma)Age as listed in referenceDating MethodAge InterpretPrioritized?Sample SourceSample NumRun NumAge from other LocalityDated MineralMinerals explicitely stated as having this ageAge applies to these ElementsMinDat Locality IDDated Locality (Max Age)Location as listed in referenceReferenceReference DOIReference IDAge Notes
NAVDAT-8307332026+7/-6   8307    95453Unnamed Au Placer [107], Ager, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-8315332026+7/-6   8315    95453Unnamed Au Placer [107], Ager, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935230.010.00940.01+0/-0.0006   93523    233224Black Butte, Black Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-532340.5490.0290.29+0.259/-0.261   53234    94592Klamath Concrete Pipe Company, Black Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-934620.120.080.1±0.02   93462    233317Cinder Cone, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-432599.1888.59±0.59  whole rock43259    232353Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-315781.800.9±0.9   31578    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-432584.563.664.11±0.45  whole rock43258    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-315771.800.9±0.9   31577    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-315761.800.9±0.9   31576    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-315751.800.9±0.9   31575    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-315741.800.9±0.9   31574    94087Copco Dam Borrow Pit, Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-8310332026+7/-6   8310    95440Unnamed Stone Deposit [22], Copco, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-531070.5490.0290.29+0.259/-0.261   53107    93997Cougar Butte Occurrence (Canyon Butte; Couger Butte), Cougar Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-528930.5490.0290.29+0.259/-0.261   52893    215048Unnamed Obsidian Occurrence [1], Cougar Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295900.0100+0.01/-0   29590    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295910.0100+0.01/-0   29591    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295920.0100+0.01/-0   29592    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295930.0100+0.01/-0   29593    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295940.0100+0.01/-0   29594    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295950.0100+0.01/-0   29595    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295960.0100+0.01/-0   29596    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295970.0100+0.01/-0   29597    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295890.0100+0.01/-0   29589    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295880.0100+0.01/-0   29588    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295871.800.9±0.9   29587    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-295861.800.9±0.9   29586    94270Fouch Occurrence (Thompson Pumice Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-531910.5490.0290.413+0.136/-0.384   53191    94310Glass Mountain Industries (Glass Mountain Volcolite Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-100230.540.420.48±0.06  whole rock10023    94310Glass Mountain Industries (Glass Mountain Volcolite Company), Glass Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935410.250.130.19±0.06   93541    234181Gray Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935420.250.130.19±0.06   93542    234181Gray Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-530320.5490.0290.29+0.259/-0.261   53032    233665High Hole Crater, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-530310.5490.0290.29+0.259/-0.261   53031    233665High Hole Crater, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-529570.5490.0290.29+0.259/-0.261   52957    95314Tionesta Quarry, High Hole Crater, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-529580.5490.0290.29+0.259/-0.261   52958    95314Tionesta Quarry, High Hole Crater, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-532600.5490.0290.29+0.259/-0.261   53260    95345Unidentified Stone Location [11], Hippo Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-529500.5490.0290.29+0.259/-0.261   52950    95345Unidentified Stone Location [11], Hippo Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-224451.111550.909451.0105±0.10105   22445    232572Indian Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-530490.5490.0290.29+0.259/-0.261   53049    93904Block Pumice Claims (Glass Mountain Mine), Indian Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-531590.5490.0290.29+0.259/-0.261   53159    93904Block Pumice Claims (Glass Mountain Mine), Indian Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-528330.5490.0290.29+0.259/-0.261   52833    93904Block Pumice Claims (Glass Mountain Mine), Indian Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-100250.060.040.05±0.01  whole rock10025    93904Block Pumice Claims (Glass Mountain Mine), Indian Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-533903.040.5831.81+1.23/-1.227   53390    94721McCloud River Railroad Deposit, Indian Spring Mountain, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-528850.5490.0290.29+0.259/-0.261   52885    232109Little Mount Hoffman, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-528610.5490.0290.29+0.259/-0.261   52861    232109Little Mount Hoffman, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-530590.5490.0290.149+0.4/-0.12   53059    232109Little Mount Hoffman, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935560.250.130.19±0.06   93556    232175McKenzie Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935570.250.130.19±0.06   93557    232175McKenzie Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935580.250.130.19±0.06   93558    232175McKenzie Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935270.080.010.05+0.03/-0.04   93527    122810Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-934870.0060.0020+0.006/--0.002   93487    122810Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-934860.0060.0020+0.006/--0.002   93486    122810Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-934820.0060.0020+0.006/--0.002   93482    122810Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935460.250.130.19±0.06   93546    94790Mount Shasta Gravel Company, Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935300.080.010.05+0.03/-0.04   93530    94293Unnamed Gemstone Occurrence [2], Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-935290.080.010.05+0.03/-0.04   93529    94293Unnamed Gemstone Occurrence [2], Mount Shasta, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-529920.5490.0290.29+0.259/-0.261   52992    94549Johnson Mine (G. Z. Johnson), Paint Pot Crater, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-531510.5490.0290.29+0.259/-0.261   53151    94045Unnamed Cinder Pit [2], Porcupine Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-224591.111550.909451.0105±0.10105   22459    94045Unnamed Cinder Pit [2], Porcupine Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-530080.5490.0290.29+0.259/-0.261   53008    94046Unnamed Cinder Pit [3], Porcupine Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-934710.120.080.1±0.02   93471    95596Yellow Butte Quarry, Yellow Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-531790.5490.0290.29+0.259/-0.261   53179    233664Yellowjacket Butte, Cascade Range, Siskiyou Co., California, USA NAVDAT NAVDAT 
podchrome-00275465465Ordovician       Cr94063Coggins Mine, Dunsmuir, Siskiyou Co., California, USACogginsMoiser et al. (2012) USGSSIR2012_5157 
NAVDAT-129832183.6032150.2208166.912±16.6912  biotite129832    92666Hearst Property, Dunsmuir, Siskiyou Co., California, USA NAVDAT NAVDAT 
podchrome-00276465465Ordovician       Cr92742Little Castle Creek Mine (Castle Crag Mine; Brown Mine), Dunsmuir, Siskiyou Co., California, USALittle Castle CreekMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00279465465Ordovician       Cr94607Peg Leg Mine (Lambert Claim; White And Brown Mine; Moffett Creek Group; Chromite King Mine), Bally Mountain, Klamath Mts, Siskiyou Co., California, USAPeglegMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00261163163Middle Jurassic (162-164 Ma)       Cr94157Doe Flat Chromite Mine (Comeback Claim; Doe Flat Claim), Youngs Valley Group, Bear Mountain, Klamath Mts, Siskiyou Co., California, USADoe FlatMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00281200200Triassic-Jurassic (225-180 Ma)       Cr95235Snowy Ridge Mine (Sally Anne Mine; Lucky Haul Mine), Beaver Creek District, Klamath Mts, Siskiyou Co., California, USASnowy RidgeMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00287200200Triassic-Jurassic (225-180 Ma)       Cr94209Emma Bell Mine (Chrome Mountain Mine; Stanton Property; Blue Eagle And Black Eagle Claims), Cook And Green Butte, Klamath Mts, Siskiyou Co., California, USAEmma BellMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00288200200Triassic-Jurassic (225-180 Ma)       Cr95164Seiad Creek Mine (No. 14 Mine; Northern Klamath Mountains Mine; Red Hills Mine; Reddy No. 2 Mine; Teddy Chrome Mine; Valley View; Mountain View), Copper Butte, Klamath Mts, Siskiyou Co., California, USASeiad CreekMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00249163163Middle Jurassic (162-164 Ma)       Cr94128Cyclone Gap Mine (Mammoth Mine), El Capitan, Klamath Mts, Siskiyou Co., California, USACyclone GapMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00295200200Triassic-Jurassic (225-180 Ma)       Cr94201Elk Creek Claim (Buckhorn; Skin Shin), Huckleberry Mountain, Klamath Mts, Siskiyou Co., California, USAElk CreekMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00284200200Triassic-Jurassic (225-180 Ma)       Cr94565Kangaroo Mountain Mine (Kubli-Scott Claim; Anniversary Claim; McGuire), Kangaroo Mountain, Klamath Mts, Siskiyou Co., California, USAAnniversaryMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00282200200Triassic-Jurassic (225-180 Ma)       Cr94604Ladd Mine (Klamath Chrome Mine; Dolbear Mine; Chromite Group), Granite Point, Klamath River District, Klamath Mts, Siskiyou Co., California, USALaddMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00283200200Triassic-Jurassic (225-180 Ma)       Cr94237Fairview Mine (Fairview Chrome Mine; Hamburg Bar), Hamburg, Klamath River District, Klamath Mts, Siskiyou Co., California, USAFairviewMoiser et al. (2012) USGSSIR2012_5157 
NAVDAT-1300570.250.130.19±0.06   130057    94589King Tut Mine, Lovers Leap, Klamath Mts, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-1300460.0090.0090.009±0   130046    94589King Tut Mine, Lovers Leap, Klamath Mts, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-1300420.080.010.045±0.035   130042    94589King Tut Mine, Lovers Leap, Klamath Mts, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-1300410.080.010.045±0.035   130041    94589King Tut Mine, Lovers Leap, Klamath Mts, Siskiyou Co., California, USA NAVDAT NAVDAT 
podchrome-00222465465Ordovician       Cr93808Bagley Mine (Big Boy; Lucky Strike Claims; Josephine; Genesis), Mountain House, Klamath Mts, Siskiyou Co., California, USABagleyMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00278465465Ordovician       Cr94170Dozier Mine (Dorothy Mine; Genesio Mine; Gould Mine; Big Boy Mine; Mountain House Mine), Mountain House, Klamath Mts, Siskiyou Co., California, USADozierMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00277465465Ordovician       Cr94424Hayden And Hilt Mine (Genesis Mine), Mountain House, Klamath Mts, Siskiyou Co., California, USAHayden and HiltMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00280465465Ordovician       Cr95169Serpa Ranch, Chaparral Hill, Fort Jones, Oro Fino District, Klamath Mts, Siskiyou Co., California, USASerpa RanchMoiser et al. (2012) USGSSIR2012_5157 
USGS-U-Th-Pb-01431_206_238161157159±2206_238 zircon   Zircon  231951Preston Peak, Klamath Mts, Siskiyou Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01431_207_206177157167±10207_206 zircon   Zircon  231951Preston Peak, Klamath Mts, Siskiyou Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
USGS-U-Th-Pb-01431_207_235161157159±2207_235 zircon   Zircon  231951Preston Peak, Klamath Mts, Siskiyou Co., California, USA USGS-U-Th-Pb USGS-U-Th-Pb 
Jen_0000129143014301430U-Pb zircon   Zircon  231840Marble Mountain, Salmon Mts, Klamath Mts, Siskiyou Co., California, USABiotite Granite, Marble Mountains, CaliforniaAnderson (1983)10.1130/MEM161-p133GSAM161_133anorogenic
vms-01030170170Jurassic       S94367Gray Eagle Mine (Dakin Mine), Slater Butte, Klamath Mts, Siskiyou Co., California, USAGrey EagleMoiser et al. (2009) USGSOFR2009_1034 
podchrome-00290200200Triassic-Jurassic (225-180 Ma)       Cr94017Cerro Colorado Mine (Milns And Richman Mine; Liberty Mine), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USACerro ColoradoMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00294200200Triassic-Jurassic (225-180 Ma)       Cr94358Grand Canyon Occurrence (Napatana-Neptune), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USAGrand Falls-Grand CanyonMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00292200200Triassic-Jurassic (225-180 Ma)       Cr94706Mary Lou Claim (Chromite Claim; Octopus Claim), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USAMary LouMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00291200200Triassic-Jurassic (225-180 Ma)       Cr94730McGuffy Creek Deposit (Veta Chica Mine; Veta Grande Mine; Red Butte; Grand Canyon; Lady Gray; Grand Falls; Cherro Colorado; Mary Lou), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USAVeta GrandeMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00293200200Triassic-Jurassic (225-180 Ma)       Cr94730McGuffy Creek Deposit (Veta Chica Mine; Veta Grande Mine; Red Butte; Grand Canyon; Lady Gray; Grand Falls; Cherro Colorado; Mary Lou), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USALady GrayMoiser et al. (2012) USGSSIR2012_5157 
podchrome-00289200200Triassic-Jurassic (225-180 Ma)       Cr95528Veta Chica Occurrence (Jumbo; Mil Diables), Tom Martin Peak, Klamath Mts, Siskiyou Co., California, USAVeta ChicaMoiser et al. (2012) USGSSIR2012_5157 
vms-0102325266Mesozoic        93923Blue Ledge Mine (Blue Ledge Extension Mine), Windy Peak, Klamath Mts, Siskiyou Co., California, USABlue LedgeMoiser et al. (2009) USGSOFR2009-1034 
NAVDAT-5134452535±10   5134    232080Montague, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-5133452535±10   5133    232080Montague, Siskiyou Co., California, USA NAVDAT NAVDAT 
NAVDAT-5128452535±10   5128    232080Montague, Siskiyou Co., California, USA NAVDAT NAVDAT 
Kristen002448167145Middle to Early Jurassic     Yes  4064Josephine Creek Placers, Josephine Creek District, Josephine Co., Oregon, USANevadan Orogeny, Josephine Creek placersLanphere et al. (1968)10.1130/0016-7606(1968)79[1027:IAOTNO]2.0.CO;2GSAB79_1027 

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