Ground Water Information Center | MBMG Data Center Montana Bureau of Mines and Geology Montana Technological University 1300 West Park Street - Natural Resources Building Room 329 Butte Montana 59701-8997 Ph: (406) 496-4336 Fx: (406) 496-4343 |
10/8/2024 |
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Listed below are the currently available Geologic Aquifer Codes in GWIC.
Code | Description |
---|---|
100UDFD | CENOZOIC UNDIFFERENTIATED |
110ADKB | ANDERSON-DIETZ1 CLINKER |
110ALVF | ALLUVIAL FAN DEPOSITS (QUATERNARY) |
110ALVM | ALLUVIUM (QUATERNARY) |
110ANKB | ANDERSON CLINKER |
110CDKB | C&D CLINKER |
110CKKB | COOK CLINKER |
110CLNK | QUATERNARY CLINKER DEPOSITS |
110CLVM | COLLUVIUM (QUATERNARY) |
110CNKB | CANYON CLINKER |
110DIKB | DIETZ CLINKER |
110FRKB | FERRY CLINKER |
110LCSR | LACUSTRINE DEPOSITS (QUATERNARY) |
110LDSL | QUATERNARY LANDSLIDE DEPOSITS |
110ODKB | ODELL CLINKER |
110PDMN | PEDIMENT DEPOSITS (QUATERNARY) |
110PWKB | PAWNEE CLINKER |
110SNGR | SAND AND GRAVEL (QUATERNARY) |
110SWKB | SAWYER CLINKER |
110TRRC | TERRACE DEPOSITS (QUATERNARY) |
110UDFD | QUATERNARY UNDIFFERENTIATED |
110VLCC | VOLCANICS (QUATERNARY) |
110WAKB | WALL CLINKER |
110YRT1 | YELLOWSTONE RIVER TERRACE-1 |
111ALVF | ALLUVIAL FAN DEPOSITS (HOLOCENE) |
111ALVM | ALLUVIUM (HOLOCENE) |
111CLVM | COLLUVIUM (HOLOCENE) |
111DDGP | DREDGE PILINGS (PLACER TAILINGS) |
111DMCT | HOLOCENE SILT AND CLAY |
111FILL | HOLOCENE MAN-DEPOSITED FILL MATERIALS |
111LCSR | LACUSTRINE DEPOSITS (HOLOCENE) |
111MDMP | MINE DUMPS |
111MTLG | MINE TAILINGS |
111PDMN | PEDIMENT DEPOSITS (HOLOCENE) |
111SICL | HOLOCENE SILT AND CLAY |
111SNGR | SAND AND GRAVEL (HOLOCENE) |
111SPBK | COAL MINE SPOIL BANKS |
111TGPD | TAILING PONDS |
111TRRC | TERRACE DEPOSITS (HOLOCENE) |
111UDFD | HOLOCENE UNDIFFERENTIATED |
111VLCC | VOLCANICS (HOLOCENE) |
111WAST | METAL MINE WASTE ROCK |
111WDBL | WIND BLOWN DEPOSITS (HOLOCENE) |
112ALMN | ALTAMONT MORAINE |
112ALVF | ALLUVIAL FAN DEPOSITS - PLEISTOCENE |
112ALVM | ALLUVIUM (PLEISTOCENE) |
112CNCK | CRANE CREEK GRAVEL |
112CRRC | CARTWRIGHT GRAVEL (PLEISTOCENE) |
112DMCT | PLEISTOCENE DIAMICT: DEBRIS FLOW GLACIAL OR OTHER |
112DRFT | GLACIAL DRIFT |
112GFLK | GLACIAL GREAT FALLS LAKE SEDIMENTS |
112GLCC | GLACIOLACUSTRINE DEPOSITS (PLEISTOCENE) |
112LCSR | LACUSTRINE DEPOSITS (PLEISTOCENE) |
112LKML | GLACIAL LAKE MISSOULA BEDS |
112LONE | LONEPINE AQUIFER (LITTLE BITTERROOT VALLEY) |
112OTSH | GLACIAL OUTWASH (PLEISTOCENE) |
112RKGL | ROCK GLACIER (UPPER PLEISTOCENE) |
112SDMS | SEDIMENTS (PLEISTOCENE) |
112SICL | PLEISTOCENE SILT AND CLAY |
112SNGR | SAND AND GRAVEL (PLEISTOCENE) |
112TILL | GLACIAL TILL |
112TRRC | TERRACE DEPOSITS (PLEISTOCENE) |
112UDFD | PLEISTOCENE UNDIFFERENTIATED |
112VFAL | PLEISTOCENE VALLEY-FILL ALLUVIUM CLEAN SAND&GRAV |
112VLCC | VOLCANICS (PLEISTOCENE) |
112WDBL | WIND-BLOWN DEPOSITS (PLEISTOCENE) |
112WIOT | WIOTA GRAVELS (PLEISTOCENE) |
112YRT2 | YELLOWSTONE RIVER TERRACE-2 |
112YRT3 | YELLOWSTONE RIVER TERRACE-3 |
112YRT4 | YELLOWSTONE RIVER TERRACE-4 |
120BLMN | BELMONT PORPHRY |
120BRKR | BARKER PORPHYRY |
120BZMN | BOZEMAN GROUP |
120CPCK | CARPENTER CREEK GRANITE PORPHYRY |
120DMCT | TERTIARY DIAMICT: DEBRIS FLOW GLACIAL OR OTHER |
120DMLM | DRUMLUMMON PORPHYRY |
120FWLS | FRESH WATER LIMESTONE OF PLIOCENE AND MIOCENE AGE WITHIN TUFFACEOUS DEPOSITS |
120LCSR | LACUSTRINE DEPOSITS (TERTIARY) |
120LNLY | LINLEY CONGLOMERATE |
120PLNC | PLUTONIC ROCKS (TERTIARY - CRETACEOUS) |
120PNTO | PINTO DIORITE |
120SCRK | SNOW CREEK QUARTZ PORPHYRY |
120SDMS | SEDIMENTS (TERTIARY) |
120SFRD | STANFORD CONGLOMERATE |
120SICL | TERTIARY SILT AND CLAY |
120SNGR | SAND AND GRAVEL (TERTIARY) |
120TRRC | TERRACE DEPOSITS (TERTIARY) |
120UDFD | TERTIARY UNDIFFERENTIATED |
120VLCC | VOLCANICS (TERTIARY) |
120WOLF | WOLF PORPHYRY |
121BLCK | BLACK TAIL DEER CREEK FORMATION |
121CSTL | CASTLE GRANITE (PLIOCENE) |
121FLXV | FLAXVILLE GRAVELS (PLIOCENE-MIOCENE) |
121FREL | FORT ELLIS BEDS (PLIOCENE) |
121LCSR | LACUSTRINE DEPOSITS (PLIOCENE) |
121PLNC | PLUTONIC ROCKS (PLIOCENE) |
121SDMS | SEDIMENTS (PLIOCENE) |
121SXCK | SIXMILE CREEK FORMATION (PLIOCENE) |
121UDFD | PLIOCENE UNDIFFERENTIATED |
121VLCC | VOLCANIC ROCKS (PLIOCENE) |
122ARKR | ARIKAREE FORMATION (MIOCENE) |
122CHLS | CHALLIS VOLCANICS (MIOCENE-OLIGOCENE-EOCENE) |
122CLLS | CHALLIS VOLCANICS-EOCENE |
122DPRV | DEEP RIVER BEDS (MIDDLE MIOCENE) |
122FRLG | FORT LOGAN BEDS (LOWER MIOCENE) |
122LCSR | LACUSTRINE DEPOSITS (MIOCENE) |
122MDSV | MADISON VALLEY FORMATION |
122PLNC | PLUTONIC ROCKS (MIOCENE) |
122RMRD | RIMROAD GRAVEL OR FORMATION |
122SDMS | SEDIMENTS (MIOCENE) |
122UDFD | MIOCENE UNDIFFERENTIATED |
122VLCC | VOLCANIC ROCKS (MIOCENE) |
122WDMN | WOOD MOUNTAIN GRAVELS (SASKATCHEWAN) |
123ABRD | ANCESTRAL BITTERROOT RIVER DEPOSITS |
123CBGA | CLIMBING ARROW FORMATION (OF BOZEMAN GROUP) |
123CHLS | CHALLIS VOLCANICS (OLIGOCENE) |
123CKRC | COOK RANCH FORMATION |
123CPHL | CYPRESS HILLS FORMATION (SASKATCHEWAN) |
123DBCK | DUNBAR CREEK FORMATION (OF BOZEMAN GROUP) |
123LCSR | LACUSTRINE DEPOSITS (OLIGOCENE) |
123PLNC | PLUTONIC ROCKS (OLIGOCENE) |
123PPSP | PIPESTONE SPRINGS FORMATION |
123RDBF | RED BLUFF FORMATION (LATE EOCENE-OLIGOCENE) |
123SDMS | SEDIMENTS (OLIGOCENE) |
123UDFD | OLIGOCENE UNDIFFERENTIATED |
123VLCC | VOLCANIC ROCKS (OLIGOCENE) |
123WRVR | WHITE RIVER FORMATION OR GROUP-SOUTH DAKOTA |
124ABSK | ABSAROKA VOLCANICS (EOCENE) |
124BVRD | BEAVERHEAD FORMATION (EOCENE - PALEOCENE) |
124CRDL | CRANDALL CONGLOMERATE-WYOMING |
124GLDV | GOLDEN VALLEY FORMATION-NORTH DAKOTA |
124GVSB | GOLDEN VALLEY FORMATION (OLIGOCENE-PALEOCENE) |
124KGBG | KINGSBURY CONGLOMERATE MEMBER (OF WASATCH FM) |
124KSNN | KISHENEHN FORMATION |
124LDCK | LOWLAND CREEK VOLCANICS |
124LVGS | LIVINGSTON FORMATION (EOCENE -CRETACEOUS) |
124PLNC | PLUTONIC ROCKS (EOCENE) |
124REES | REESE FORMATION-EOCENE |
124SDMS | SEDIMENTS (EOCENE) |
124SGCK | SAGE CREEK FORMATION |
124SPNX | SPHINX CONGLOMERATE |
124UDFD | EOCENE UNDIFFERENTIATED |
124VLCC | VOLCANICS (EOCENE) |
124WSTC | WASATCH FORMATION |
125ADCB | ANDERSON-DIETZ 1 COALS COMBINED - FT UNION FM |
125ADIB | ANDERSON-DIETZ INTERBURDEN - FT UNION FM |
125ADKB | ANDERSON-DIETZ1 CLINKER - FT UNION FM |
125ADKC | ANDERSON-DIETZ1 CLINKER AND COAL - FT UNION FM |
125ADOB | ANDERSON-DIETZ 1 AND 2 OVERBURDEN - FT UNION FM |
125ADUB | ANDERSON-DIETZ COAL UNDERBURDEN |
125ANCB | ANDERSON COAL OF THE FT UNION FORMATION |
125AND2 | ANDERSON-DIETZ 1 AND 2 COALS - FT UNION FM |
125ANUB | ANDERSON COAL UNDERBURDEN |
125BACB | BREWSTER-ARNOLD COAL - FT UNION FM |
125BAUB | BREWSTER-ARNOLD COAL UNDERBURDEN |
125BEAR | BEAR FORMATION |
125CDCB | C&D COAL |
125CDUB | C&D COAL UNDERBURDEN |
125CKCB | COOK COAL - FT UNION FM |
125CKUB | COOK COAL UNDERBURDEN |
125CNCB | CANYON COAL OF THE FT UNION FORMATION |
125CNOB | CANYON COAL OVERBURDEN - FT UNION FORMATION |
125CNUB | SUB-CANYON COAL SANDSTONE - FT UNION FM |
125CRCB | CARNEY COAL BED |
125D12K | DIETZ 1 AND 2 CLINKER AND COAL - FT UNION FM |
125D1CB | DIETZ 1 COAL OF THE FT UNION FORMATION |
125D1D2 | DIETZ 1 AND 2 COALS COMBINED - FT UNION FM |
125D23I | DIETZ 2 - 3 INTERBURDEN - FT UNION FM |
125D2CB | DIETZ 2 COAL OF THE FT UNION FORMATION |
125D3CB | DIETZ 3 COAL OF THE FT UNION FORMATION |
125DICB | DIETZ COAL OF THE FT UNION FORMATION |
125DIUB | DIETZ COAL UNDERBURDEN |
125ELCB | ELK COAL |
125ELUB | ELK COAL UNDERBURDEN |
125FGCB | FLOWERS-GOODALE COAL - FT UNION FM |
125FGOB | FLOWERS-GOODALE COAL OVERBURDEN - FT UNION FM |
125FGUB | FLOWERS-GOODALE COAL UNDERBURDEN - FT UNION FM |
125FRCB | FERRY COAL |
125FRUB | FERRY COAL UNDERBURDEN |
125FRUN | FORT UNION FORMATION |
125HRMN | HARMON LIGNITE OF THE TONGUE RIVER MEMBER |
125KNCB | KNOBLOCK COAL OF THE FT UNION FORMATION |
125KNOB | KNOBLOCK COAL OVERBURDEN SS - FT UNION FM |
125KNUB | KNOBLOCH COAL UNDERBURDEN - FT UNION FM |
125LDLW | LUDLOW MEMBER (OF FT UNION FM.) |
125LEBO | LEBO SHALE MEMBER (OF FT UNION FM.) |
125LKCB | LOWER KNOBLOCH COAL OF THE FORT UNION FORMATION |
125LNLY | LINLEY CONGLOMERATE (MEMBER OF THE FORT UNION FM) |
125LOCB | LOCAL COALS - FT UNION FM |
125MKCB | MCKAY COAL * FORT UNION FORMATION |
125MKOB | MCKAY OVERBURDEN-SANDSTONE - FT UNION FM |
125MMCB | MAMMOTH COAL OF THE FT UNION FM. |
125MMOB | MAMMOTH COAL OVERBURDEN - FT UNION FM |
125MMUB | SUB-MAMMOTH COAL UNITS - FT UNION FM. |
125MNCB | MONARCH COAL - FT UNION FM |
125NACB | NANCE COAL OF THE FT UNION FM |
125ODCB | ODELL COAL |
125ODUB | ODELL COAL UNDERBURDEN |
125OTCB | OTTER COAL OF THE FT UNION FM |
125OTUB | OTTER COAL UNDERBURDEN |
125PLNC | PLUTONIC ROCKS (PALEOCENE) |
125PWCB | PAWNEE COAL |
125PWUB | PAWNEE COAL UNDERBURDEN |
125RBCB | ROSEBUD COAL * FORT UNION FORMATION |
125RBMI | ROSEBUD-MCKAY INTERBURDEN * FT UNION FM. |
125RBOB | ROSEBUD OVERBURDEN SANDSTONE - FT UNION FM. |
125RLCB | ROLAND COAL - FT UNION FM |
125ROBN | ROBINSON COAL OF THE FORT UNION FORMATION |
125SAIB | SMITH/ANDERSON INTERBERDON - FT UNION FM. |
125SDMS | SEDIMENTS (PALEOCENE) |
125SMCB | SMITH COAL OF THE FORT UNION FORMATION |
125SMOB | SMITH COAL OVERBURDEN OF THE FORT UNION FORMATION |
125SNLB | SENTINEL BUTTE MEMBER (OF FT UNION FM.) |
125SRSL | SUB-ROBINSON SILT OF THE FT UNION FM. |
125SUMK | SUB-MCKAY SANDSTONE OF THE FT UNION FM. |
125SWCB | SAWYER COAL |
125SWUB | SAWYER COAL UNDERBURDEN |
125TGRV | TONGUE RIVER MEMBER (OF FT UNION FM.) |
125TLCK | TULLOCK MEMBER (OF FT UNION FM.) |
125TTCB | TERRET COAL - FT UNION FM |
125UDFD | PALEOCENE UNDIFFERENTIATED |
125VLCC | VOLCANICS (PALEOCENE) |
125WACB | WALL COAL - FT UNION FM |
125WAOB | WALL COAL OVERBURDEN - FT UNION FM |
125WAUB | WALL COAL UNDERBURDEN |
125WLCK | WILLOW CREEK FORMATION (LATE CRETACEOUS) |
200PLNC | PLUTONIC ROCKS (MESOZOIC) |
200SDMS | SEDIMENTS (UNDIFFERENTIATED) |
200UDFD | MESOZOIC UNDIFFERENTIATED |
200VLCC | VOLCANICS (MESOZOIC) |
210CRCS | USGS GEOLOGIC CODE (MEANING ?) |
210PLNC | PLUTONIC ROCKS (CRETACEOUS) |
210SDMS | SEDIMENTS (CRETACEOUS) |
210UDFD | CRETACEOUS UNDIFFERENTIATED |
210VLCC | VOLCANICS (CRETACEOUS) |
211ACRK | ASH CREEK SANDSTONE MEMBER (OF STEELE SHALE) |
211ADLM | ADEL MOUNTAIN VOLCANICS |
211ASPN | ASPEN SHALE |
211BDBT | BOULDER BATHOLITH |
211BDRV | BOULDER RIVER SS MEMBER (OF FRONTIER FM.) |
211BGEK | BIG ELK SANDSTONE (OF COLORADO GROUP) |
211BLCK | BULL CREEK SANDY LIMESTONE MEM (OF GREENHORN FM) |
211BLDB | USGS CODE (BOULDER BATHOLITH?) |
211BLFC | BELLE FOURCHE SHALE MEMBER (OF GRANEROS FM) |
211BMCK | BILLMAN CREEK FORMATION (OF LIVINGSTON GROUP) |
211BNTN | BENTON SHALE (OF COLORADO GROUP) |
211BRPW | BEARPAW SHALE |
211BSIN | BASIN SHALE |
211BVCK | BEAVER CREEK CHALKY MEMBER (OF NIOBRARA FM) |
211BWDN | BOWDOIN SANDSTONE |
211CBRL | COBERLY FORMATION (OF COLORADO GROUP) |
211CKDL | COKEDALE FORMATION (OF LIVINGSTON GROUP) |
211CLGT | CLAGGETT SHALE OR FORMATION |
211CLNC | CLANCY GRANODIORITE |
211CLRD | COLORADO SHALE OR FM. (OF COLORADO GROUP) |
211CODY | CODY SHALE |
211COGT | COLGATE SANDSTONE MEMBER (OF FOX HILLS FM.) |
211CONE | CONE CALCAREOUS MEM (OF MARIAS RIVER FM) |
211CRCK | CARTER CREEK FORMATION (OF COLORADO GROUP) |
211CRLL | CARLILE SHALE (OF COLORADO GROUP) |
211DBTL | IDAHO BATHOLITH |
211EGLE | EAGLE SANDSTONE |
211ELKB | ELK BASIN SANDSTONE MEMBER (OF TELEGRAPH CK FM) |
211ELKM | ELKHORN MOUNTAINS VOLCANICS |
211FHHC | FOX HILLS-HELL CREEK AQUIFER |
211FLWR | FLOWEREE MEMBER (OF MARIAS RIVER FM.) |
211FRDG | FERDIG SHALE MEMBER (OF MARIAS RIVER FM.) |
211FRHS | FORT HAYS LIMESTONE MEMBER (OF NIOBRARA FM) |
211FRNR | FRONTIER FORMATION |
211FSCL | FISH SCALE ZONE (IN GREENHORN FM.) |
211FWSK | FIRST WHITE SPECKS (IN NIOBRARA FM.) |
211FXHL | FOX HILLS FORMATION OR SANDSTONE |
211GMMN | GAMMON FERRUGINOUS MEMBER (OF PIERRE SHALE) |
211GRNR | GREENHORN LIMESTONE (OF COLORADO GROUP) |
211GROT | GROAT SANDSTONE BED (OF PIERRE SHALE) |
211GRRS | GRANEROS SHALE (OF COLORADO GROUP) |
211GSPK | GOLDEN SPIKE FM (OF MONTANA GROUP) |
211HLCK | HELL CREEK FORMATION |
211HLTR | HOLTER MEMBER (OF MARIAS RIVER FM.) |
211HPRS | HOPPERS FORMATION (OF LIVINGSTON GROUP) |
211HRSF | HORSETHIEF SANDSTONE (OF MONTANA GROUP) |
211JDRV | JUDITH RIVER FORMATION (OF MONTANA GROUP) |
211JENS | JENS FORMATION (OF COLORADO GROUP) |
211JREL | JUDITH RIVER-EAGLE FORMATIONS |
211KVIN | KEVIN SHALE MEMBER (OF MARIAS RIVER FM) |
211LHUD | LANCE-HELL CREEK UNDIFFERENTIATED |
211LNCE | LANCE FORMATION |
211LNNP | LENNEP SANDSTONE (OF MONTANA GROUP) |
211LVGS | UPPER CRETACEOUS LIVINGSTON GROUP |
211LVIS | LIVINGSTON IGNEOUS SERIES (OF LIVINGSTON GROUP) |
211LWIS | LEWIS SHALE OR FORMATION-WYOMING |
211MMHL | MONUMENT HILL BENTONITE MEMBER (OF PIERRE SH) |
211MNTN | MONTANA GROUP |
211MRCK | MINER CREEK FORMATION (OF LIVINGSTON GROUP) |
211MRRV | MARIAS RIVER FORMATION (OF COLORADO GROUP) |
211MSBY | MOSBY SANDSTONE MEMBER (OF WARM CREEK SHALE) |
211MTTN | MITTEN BLACK SHALE MEMBER (OF PIERRE SHALE) |
211MTTS | MEETEETSE FORMATION-WYOMING |
211MVRD | MESAVERDE FORMATION OR GROUP-WYOMING |
211NBRR | NIOBRARA FM. OR LIMESTONE (OF COLORADO GP) |
211PDRO | PEDRO BENTONITE BED (OF PIERRE SHALE) |
211PEAY | PEAY SANDSTONE MEMBER (OF FRONTIER FM.) |
211PINY | PINEY FORMATION-WYOMING |
211PIRR | PIERRE SHALE (OF MONTANA GROUP) |
211PLNC | PLUTONIC ROCKS (UPPER CRETACEOUS) |
211PLPS | PHILLIPS SANDSTONE |
211PRKM | PARKMAN SANDSTONE (OF MONTANA GROUP) |
211RDBD | RED BIRD SILTSTONE MEMBER (OF PIERRE SHALE) |
211SCGR | SCRATCHGRAVEL HILLS STOCK |
211SDAN | SEDAN FORMATION (UPPER CRETACEOUS) |
211SGBK | SAGE BREAKS SHALE MEMBER (OF NIOBRARA SHALE) |
211SGHN | SAGE HEN LIMESTONE (OF COLORADO SHALE) |
211SLPF | SULPHUR FLATS SS MEMBER (OF LIVINGSTON GROUP) |
211SMKH | SMOKY HILL CHALK MEMBER (OF NIOBRARA SHALE) |
211SMRV | ST. MARY RIVER FORMATION |
211SMSM | SLIM SAM FORMATION |
211SNNN | SHANNON SANDSTONE MBR. (OF CODY OR STEELE SH) |
211SPCK | SOAP CREEK BENTONITE BED (MEMBER OF FRONTIER FM) |
211SSPG | SHARON SPRINGS MEMBER (OF PIERRE SHALE) |
211SSSX | SUSSEX SANDSTONE MEMBER (OF CODY SHALE) |
211STEL | STEELE SHALE |
211SVLF | STONEVILLE FLATS LIMESTONE MEM (OF BELLE FOURCHE) |
211SWSK | SECOND WHITE SPECKS (IN GREENHORN LIMESTONE) |
211TBBT | TOBACCO ROOT BATHOLITH |
211TCLG | TORCHLIGHT SANDSTONE MEMBER (OF FRONTIER FM) |
211TMBS | TOMBSTONE SANDSTONE |
211TMDC | TWO MEDICINE FORMATION (OF MONTANA GROUP) |
211TPCK | TELEGRAPH CREEK FORMATION (OF MONTANA GROUP) |
211TPOT | TEAPOT SANDSTONE MEMBER (OF MESAVERDE FM.) |
211TRBT | TOBACCO ROOT BATHOLITH |
211TRNR | TURNER SANDY MEMBER (OF CARLILE SHALE) |
211UDFD | UPPER CRETACEOUS UNDIFFERENTIATED |
211UNVL | UNIONVILLE GRANODIORITE |
211VLCC | VOLCANICS (UPPER CRETACEOUS) |
211VRGL | VIRGELLE SANDSTONE MEMBER (OF EAGLE SANDSTONE) |
211WLCK | WALL CREEK SANDSTONE MEMBER (OF FRONTIER FM) |
211WMCK | WARM CREEK SHALE (OF COLORADO GROUP) |
217ALBN | ABINO SHALE MEMBER (OF THERMOPOLIS SHALE) |
217AMFK | AMERICAN FORK FORMATION |
217BCKF | BLACKLEAF FORMATION (OF COLORADO GROUP) |
217BILD | BOW ISLAND SANDSTONE |
217BLCD | BASAL COLORADO SILTSTONE (OR DAKOTA SILT) |
217BLGR | BOOTLEGGER MEMBER (OF BLACKLEAF FM.) |
217BRDD | BIRDHEAD SANDSTONE MEMBER (OF THERMOPOLIS FM) |
217CBNK | CUT BANK SANDSTONE |
217CLSN | CHILSON MEMBER (OF LAKOTA FM.) |
217CLSP | CLAY SPUR BENTONITE BED (OF MOWRY SHALE) |
217CLVL | CLOVERLY FORMATION |
217CPRN | CYPRIAN SANDSTONE MEMBER (OF THERMOPOLIS SH) |
217DKBG | DUNKLEBERG MEMBER (OF BLACKLEAF FM.) |
217DKOT | DAKOTA SANDSTONE FORMATION OR GROUP |
217DRLG | DARLING SANDSTONE |
217FCCK | FIRST CAT CREEK SANDSTONE (BASE OF COLORADO GP) |
217FLOD | FLOOD SHALE MEMBER (OF BLACKLEAF FM.) |
217FLRV | FALL RIVER FORMATION (OF INYAN KARA GROUP) |
217FUSN | FUSON MEMBER (OF LAKOTA FM.) |
217GRBL | GREYBULL SANDSTONE MEMBER (OF CLOVERLY FM) |
217HINS | HINES MEMBER (OF CLOVERLY FM.) |
217INKR | INYAN KARA GROUP |
217KOTN | KOOTENAI FORMATION |
217LKOT | LAKOTA SANDSTONE (OF INYAN KARA GROUP) |
217LLSP | LITTLE SHEEP MEMBER (OF CLOVERLY FM.) |
217LPTN | LUPTON SAND (OF KOOTENAI FM) (2ND CAT CREEK SAND) |
217MDDY | MUDDY SANDSTONE MEMBER (OF THERMOPOLIS SHALE) |
217MLTN | MOULTON SANDSTONE |
217MSSR | MOSSER SANDSTONE |
217MWRY | MOWRY SHALE (OF COLORADO GROUP) |
217NCSL | NEWCASTLE SANDSTONE MEMBER (OF GRANEROS SHALE) |
217PLNC | PLUTONIC ROCKS (LOWER CRETACEOUS) |
217PRYR | PRYOR CONGLOMERATE MEMBER (OF CLOVERLY FM) |
217RSTY | RUSTY BEDS (IN THERMOPOLIS SHALE) |
217SBRS | SUNBURST SANDSTONE |
217SCCK | SECOND CAT CREEK SANDSTONE (OF KOOTENAI FM) |
217SDMS | SEDIMENTS (LOWER CRETACEOUS) |
217SKCK | SKULL CREEK SHALE MEMBER (OF GRANEROS SHALE) |
217TCCK | THIRD CAT CREEK SANDSTONE (BASAL KOOTENAI FM) |
217TFHL | TAFT HILL MEMBER (OF BLACKLEAF FM.) |
217TMPL | THERMOPOLIS SHALE |
217UDFD | LOWER CRETACEOUS UNDIFFERENTIATED |
217VGHN | VAUGHN MEMBER (OF BLACKLEAF FM.) |
217VKNG | VIKING SANDSTONE-CANADA |
217VLCC | VOLCANICS (LOWER CRETACEOUS) |
220SUDE | SAUDE FORMATION (JURASSIC-TRIASSIC) |
220UDFD | JURASSIC UNDIFFERENTIATED |
221BRDL | BRINDLEY SANDSTONE (OF MORRISON FM.) |
221CSPG | CANYON SPRINGS SANDSTONE MEM (OF SUNDANCE FM) |
221ELLS | ELLIS GROUP |
221HLTT | HULETT SANDSTONE MEMBER (OF SUNDANCE FM) |
221LAK | LAK MEMBER (OF SUNDANCE FM.) |
221MRSN | MORRISON FORMATION |
221RDTR | REDWATER SHALE MEMBER (OF SUNDANCE FM.) |
221RRDN | RIERDON FORMATION (OF ELLIS GROUP) |
221SKBV | STOCKADE BEAVER SHALE MEMBER (OF SUNDANCE FM) |
221SNDC | SUNDANCE FORMATION |
221SWFT | SWIFT FORMATION (OF ELLIS GROUP) |
221UDFD | UPPER JURASSIC UNDIFFERENTIATED |
221VGRD | VANGUARD FORMATION |
224BOWS | BOWES MEMBER (OF PIPER FM.) |
224FRMN | FIREMOON LIMESTONE MEMBER (OF PIPER FM.) |
224GPSP | GYPSUM SPRING FORMATION |
224KLIN | KLINE MEMBER (OF NESSON FM.) |
224NSSN | NESSON FORMATION |
224PCRD | PICARD MEMBER (OF NESSON FM.) |
224PIPR | PIPER FORMATION |
224POE | POE MEMBER (OF NESSON FM.) |
224STTH | SAWTOOTH FORMATION (OF ELLIS GROUP) |
224TMPC | TAMPICO MEMBER (OF PIPER FM.) |
224UDFD | MIDDLE JURASSIC UNDIFFERENTIATED |
230ALCV | ALCOVA LIMESTONE MEMBER (OF CHUGWATER FM.) |
230BWLR | BOWLER FORMATION |
230CGTR | CHUGWATER FORMATION |
230CRMN | CROW MTN SANDSTONE MEMBER (OF CHUGWATER FM) |
230GSEG | GOOSE EGG FORMATION |
230RDPK | RED PEAK MEMBER (OF CHUGWATER FM.) |
230SPRF | SPEARFISH FORMATION |
230UDFD | TRIASSIC UNDIFFERENTIATED |
230WDSD | WOODSIDE SHALE |
231PPAG | POPO AGIE MEMBER OF CHUGWATER FM. |
231UDFD | UPPER TRIASSIC UNDIFFERENTIATED |
237DNDY | DINWOODY FORMATION |
237TYNS | THAYNES LIMESTONE FORMATION OR GROUP |
237UDFD | LOWER TRIASSIC UNDIFFERENTIATED |
237WDSD | WOODSIDE FORMATION SILTSTONE OR REDBEDS |
300PLNC | PLUTONIC ROCKS (PALEOZOIC) |
300SDMS | SEDIMENTS (PALEOZOIC) |
300UDFD | PALEOZOIC UNDIFFERENTIATED |
300VLCC | VOLCANICS (PALEOZOIC) |
310ERVY | ERVAY MEMBER OF TONGUE (OF PHOSPHORIA FM) |
310FRNS | FRANSON MEMBER OR TONGUE (OF PARK CITY FM) |
310GRDR | GRANDEUR MEMBER (OF PARK CITY FM.) |
310MDPK | MEADE PEAK PHOSPHATIC SHALE MBR. (OF PHOSPORIA FM) |
310PNSL | PINE SALT MEMBER (OF SPEARFISH FM.) |
310PRKC | PARK CITY FORMATION OR GROUP |
310PSPR | PHOSPHORIA FORMATION |
310REX | REX CHERT MEMBER (OF PHOSPHORIA FM.) |
310RTRT | RETORT PHOSPHATIC SHALE MBR. (OF PHOSPHORIA FM) |
310SDRN | SHEDHORN SANDSTONE |
310TOSI | TOSI CHERT MEMBER OR TONGUE (OF PHOSPHORIA FM) |
310UDFD | PERMIAN UNDIFFERENTIATED |
317MNKT | MINNEKAHTA LIMESTONE MEMBER (OF GOOSE EGG FM) |
317OPCH | OPECHE SHALE |
317UDFD | LOWER PERMIAN UNDIFFERENTIATED |
320AKBC | ALASKA BENCH LIMESTONE OF AMSDEN GROUP |
320AMSD | AMSDEN GROUP |
320BGLC | BEAR GULCH LIMESTONE MEMBER (OF TYLER FM.) |
320CMCK | CAMERON CREEK MEMBER (OF TYLER FM.) |
320DRWN | DARWIN SANDSTONE (OF AMSDEN GROUP) |
320DVPK | DEVILS POCKET FORMATION (OF AMSDEN GROUP) |
320MNLS | MINNELUSA SANDSTONE OR FORMATION |
320QDRN | QUADRANT QUARTZITE |
320SNSC | STONEHOUSE CANYON MEMBER (OF TYLER FM.) |
320TSLP | TENSLEEP SANDSTONE |
320TYLR | TYLER FORMATION (OF AMSDEN GROUP) |
320UDFD | PENNSYLVANIAN UNDIFFERENTIATED |
330BKKN | BAKKEN FORMATION |
330CLRF | CASTLE REEF DOLOMITE (OF MADISON GROUP) |
330EGLD | ENGLEWOOD FORMATION |
330HNNH | HANNAH LIMESTONE |
330MDLC | MIDDLE CANYON FORMATION (OF WHITE KNOB GROUP) |
330MDSN | MADISON GROUP OR LIMESTONE |
330MLGN | MILLIGAN FORMATION |
330SCPK | SCOTT PEAK FORMATION (OF WHITE KNOB GROUP) |
330SCRK | SOUTH CREEK FORMATION (OF WHITE KNOB GROUP) |
330SRCN | SURRETT CANYON FORMATION (OF WHITE KNOB GROUP) |
330SRVR | SUN RIVER MEMBER (OF CASTLE REEF DOLOMITE) |
330UDFD | MISSISSIPPIAN UNDIFFERENTIATED |
330WKNB | WHITE KNOB LIMESTONE OR GROUP - IDAHO |
331A | 'A' ZONE (OF CHARLES FORMATION) |
331B | 'B' ZONE (OF CHARLES FORMATION) |
331BGSN | BIG SNOWY GROUP |
331C | 'C' ZONE (OR 'BERENTSON' ZONE) (OF CHARLES FM) |
331CRLS | CHARLES FORMATION (OF MADISON GROUP) |
331HETH | HEATH FORMATION OR SHALE OF BIG SNOWY GROUP |
331KBBY | KIBBEY SANDSTONE (OF BIG SNOWY GROUP) |
331MIDL | 'MIDALE' ZONE (OF CHARLES FORMATION) |
331OTTR | OTTER FORMATION (OF BIG SNOWY GROUP) |
331RCHY | RICHEY SHALE ZONE (IN CHARLES FM.) |
331UDFD | UPPER MISSISSIPPIAN UNDIFFERENTIATED |
337ALMN | ALLEN MOUNTAIN LIMESTONE (OF MADISON GROUP) |
337CNDC | COTTONWOOD CANYON MEMBER (OF LODGEPOLE LMST) |
337D | D' ZONE (OF MISSION CANYON FM.) |
337DNLK | DEAN LAKE CHERT MEMBER (OF MADISON LIMESTONE) |
337EXSH | EXSHAW SHALE |
337LCFC | LITTLE CHIEF CANYON MBR. OF LODGEPOLE LIMESTONE |
337LDGP | LODGEPOLE LIMESTONE OR FM. (OF MADISON GP) |
337MNRM | MONITOR MTN. LIMESTONE MEMBER (OF MADISON GP) |
337MSNC | MISSION CANYON LIMESTONE (OF MADISON GROUP) |
337PHSP | PAHASAPA LIMESTONE - SOUTH DAKOTA |
337PINE | PAINE SHALE MEMBER (OF LODGEPOLE FM.) |
337RONY | ROONEY CHERT MEMBER (OF MADISON LIMESTONE) |
337SLVP | SILVERTIP CONGLOMERATE MEMBER (OF MADISON GP) |
337SPNG | SAPPINGTON FORMATION |
337SYPO | SAYPO LIMESTONE MEMBER (OF MADISON LIMESTONE) |
337TRFK | THREE FORKS SHALE LIMESTONE OR FORMATION |
337UDFD | LOWER MISSISSIPPIAN UNDIFFERENTIATED |
337WDRS | WOODHURST LIMESTONE MEMBER (OF LODGEPOLE FM) |
340UDFD | DEVONIAN UNDIFFERENTIATED |
341BRDB | BIRDBEAR MEMBER (OF JEFFERSON LIMESTONE) |
341BVLK | BEAVERHILL LAKE GROUP OR FORMATION |
341CPLK | COOPERS LAKE LIMESTONE MEMBER (OF JEFFERSON FM) |
341DPRW | DUPEROW FORMATION (OF JEFFERSON GROUP) |
341DRBY | DARBY FORMATION |
341GLCK | GLEN CREEK SHALE MEMBER (OF JEFFERSON LIMESTONE) |
341GRDV | GRAND VIEW DOLOMITE - IDAHO |
341JFRS | JEFFERSON LIMESTONE |
341LGGC | LOGAN GULCH MEMBER (OF THREE FORKS FM.) |
341LNBT | LONE BUTTE LIMESTONE MEMBER (OF JEFFERSON FM) |
341NSKU | NISKU FORMATION |
341PTLC | POTLATCH FORMATION OR ANHYDRITE |
341SPDB | SPOTTED BEAR LIMESTONE MEMBER (OF JEFFERSON GP) |
341SRRV | SOURIS RIVER FORMATION |
341TRDN | TRIDENT MEMBER (OF THREE FORKS FORMATION) |
341UDFD | UPPER DEVONIAN UNDIFFERENTIATED |
341UNON | UNION SHALE |
341WDBD | WOODBEND FORMATION - ALBERTA |
341WRDG | WHITE RIDGE LIMESTONE MEMBER (OF JEFFERSON GP) |
344ASRN | ASHERN FORMATION (OF ELK POINT GROUP) |
344BRTB | BEARTOOTH BUTTE FORMATION |
344DSNB | DAWSON BAY FORMATION |
344ELKP | ELK POINT GROUP |
344MYWD | MAYWOOD FORMATION |
344PRIR | PRAIRIE EVAPORITE FORMATION (OF ELK POINT GP) |
344UDFD | MIDDLE AND LOWER DEVONIAN UNDIFFERENTIATED |
344WPGS | WINNEPEGOSIS FORMATION (OF ELK POINT GROUP) |
350IRLK | INTERLAKE FORMATION |
350LKTN | LAKETOWN DOLOMITE - UTAH |
350UDFD | SILURIAN UNDIFFERENTIATED |
360UDFD | ORDOVICIAN UNDIFFERENTIATED |
361BGRN | BIGHORN DOLOMITE |
361GNTN | GUNTON MEMBER (OF STONY MOUNTAIN FM.) |
361HRDG | HARDING SANDSTONE (OF BIGHORN DOLOMITE) |
361LIGH | LEIGH DOLOMITE MEMBER (OF BIGHORN DOLOMITE) |
361LNDR | LANDER SANDSTONE (OF BIGHORN DOLOMITE) |
361RDRV | RED RIVER FORMATION (OF BIGHORN GROUP) |
361SNMN | STONY MOUNTAIN FORMATION (OF BIGHORN GROUP) |
361STGN | STOUGHTON MEMBER (OF STONY MOUNTAIN FM.) |
361UDFD | UPPER ORDOVICIAN UNDIFFERENTIATED |
361WHTD | WHITEWOOD DOLOMITE |
364ALDN | ALADDIN SANDSTONE - SOUTH DAKOTA |
364ICBX | ICE BOX SHALE - SOUTH DAKOTA |
364KNKC | KINNIKINIC QUARTZITE |
364RGCK | ROUGHLOCK SILTSTONE - SOUTH DAKOTA |
364WNPG | WINNIPEG FORMATION |
370BKSP | BUCK SPRING FORMATION |
370CMBR | CAMBRIAN UNDIFFERENTIATED |
370HMRK | HASMARK FORMATION OR DOLOMITE |
371DDWD | DEADWOOD FORMATION |
371DRBR | DEARBORN LIMESTONE |
371DRCK | DRY CREEK SHALE |
371DUNR | DU NOIR LIMESTONE MEMBER (OF GALLATIN LIMESTONE) |
371DVLG | DEVILS GLENN DOLOMITE |
371GLTN | GALLATIN GROUP |
371GVCK | GROVE CREEK MEMBER (OF SNOWY RANGE FM.) |
371OPDR | OPEN DOOR LIMESTONE (OF GALLATIN LIMESTONE) |
371PLGM | PILGRIM LIMESTONE OR DOLOMITE |
371RDLN | RED LION FORMATION |
371SNRG | SNOWY RANGE FORMATION (OF GALLATIN GROUP) |
371YOGO | YOGO LIMESTONE |
374ALPR | ALPRESTON QUARTZITE |
374DCNN | DEATH CANYON LIMESTONE MEMBER (OF GROS V |
374DMNN | DAMNATION LIMESTONE |
374EMRS | EMERSON FORMATION |
374FLTD | FLATHEAD QUARTZITE OR SANDSTONE |
374GRDN | GORDON SHALE |
374GRVR | GROS VENTRE FORMATION |
374MGHR | MEAGHER LIMESTONE |
374PARK | PARK SHALE OR ARGILLITE |
374PGOD | PAGODA LIMESTONE |
374PNGN | PENTAGON SHALE |
374SCBK | SWITCHBACK SHALE |
374SLVH | SILVER HILL FORMATION |
374TLDN | TILDEN FORMATION |
374WLSY | WOLSEY SHALE OR FORMATION |
377STMB | STEAMBOAT LIMESTONE |
377UDFD | LOWER CAMBRIAN UNDIFFERENTIATED |
400AHRN | AHORN QUARTZITE |
400ALTN | ALTYN LIMESTONE |
400APCK | APPLE CREEK FORMATION |
400APKN | APPEKUNNY FORMATION |
400BCKF | BLACKFOOT FORMATION |
400BCRD | BOUCHARD FORMATION (OF MISSOULA GROUP) |
400BELT | BELT SUPERGROUP |
400BNNR | BONNER QUARTZITE (OF MISSOULA GROUP) |
400BURK | BURKE FORMATION (OF RAVALLI GROUP) |
400CMBL | CHAMBERLAIN SHALE |
400COOK | COOK GRANITE |
400CPCK | CAMP CREEK GROUP |
400CYUS | CAYUSE LIMESTONE |
400EMPR | EMPIRE FORMATION |
400GCRK | GOOSE CREEK GRANITE |
400GRNL | GRINNELL FORMATION (OF RAVALLI GROUP) |
400GRRG | GARNET RANGE QUARTZITE OR FORMATION |
400GRRM | GREENHORN MOUNTAIN QUARTZITE |
400GRSN | GREYSON SHALE |
400GTWY | GATEWAY FORMATION |
400HDLY | HOADLEY FORMATION |
400HELN | HELENA DOLOMITE |
400HLGT | HELLGATE QUARTZITE MEM (OF MILLER PEAK ARGILLITE) |
400KNTL | KINTLA ARGILLITE (OF MISSOULA GROUP) |
400LBBY | LIBBY FORMATION (OF MISSOULA GROUP) |
400LHOD | LAHOOD FORMATION |
400LMHI | LEMHI QUARTZITE - IDAHO |
400LUPN | LUPINE QUARTZITE (OF MISSOULA GROUP) |
400MCMR | MCNAMARA ARGILLITE OR FM. (OF MISSOULA GP) |
400MCRB | MIDDLE BELT CARBONATE |
400MLPK | MILLER PEAK ARGILLITE OR FM (OF MISSOULA GROUP) |
400MMPC | METAMORPHIC ROCKS |
400MRSH | MARSH FORMATION (OF MISSOULA GROUP) |
400MSSL | MISSOULA GROUP |
400NHRT | NEIHART QUARTZITE |
400NLND | NEWLAND FORMATION OR LIMESTONE |
400PIGN | PIEGAN GROUP |
400PLCR | PILCHER QUARTZITE (OF MISSOULA GROUP) |
400PRCD | PRICHARD FORMATION OR SLATE |
400PRCL | PURCELL BASALT (OF MISSOULA GROUP) |
400RRBR | ROCK RABBIT RIDGE QUARTZITE |
400RVLL | RAVALLI GROUP |
400RVTT | REVETT FORMATION (OF RAVALLI GROUP) |
400SIYH | SIYEH LIMESTONE (OF PIEGAN GROUP) |
400SLWY | SLOWAY FORMATION (OF MISSOULA GROUP) |
400SPKN | SPOKANE SHALE |
400SPRC | SPRUCE FORMATION (OF MISSOULA GROUP) |
400SPRD | SHEPARD FORMATION (OF MISSOULA GROUP) |
400SRGS | ST REGIS FORMATION (OF RAVALLI GROUP) |
400STRP | STRIPED PEAK FORMATION (OF MISSOULA GROUP) MID PRO |
400SWGR | SWAUGER QUARTZITE - IDAHO |
400UDFD | PRECAMBRIAN UNDIFFERENTIATED |
400WLLC | WALLACE FORMATION (OF PIEGAN GROUP) |
500CRCK | CHERRY CREEK GROUP - PRE-BELT |
500GNSC | GNEISS AND SCHIST (EARLY PROTEROZOIC OR ARCHEAN) |
500PCMB | PRECAMBRIAN (EARLY PROTEROZOIC OR ARCHEAN) |
500PONY | PONY SERIES - PRE-BELT |
500PRBL | PRE-BELT |
500STLR | STILLWATER COMPLEX (ARCHEAN) |
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