AONE

A-1

AONE1

A-1 ANHYDRITE

AONE2

A-1 CARBONATE

AONE3

A-1 DOLOMITE

AONE4

A-1 EVAPORITE

AONE5

A-1 SALT

ATWO

A-2

ATWO1

A-2 ANHYDRITE

ATWO2

A-2 CARBONATE

ATWO3

A-2 DOLOMITE

ATWO4

A-2 EVAPORITE

ATWO5

A-2 LIMESTONE

ATWO6

A-2 SALT

ALPN

ALPENA

ALPN1

ALPENA LIMESTONE

AMBG

AMHERSTBURG

ADRD

ANDERDON

ANRM

ANTRIM

ANRM1

ANTRIM DARK

ANRM2

ANTRIM LIGHT

BILD

BASS ISLANDS

BPRT

BAYPORT LIMESTONE

BDFD

BEDFORD SHALE

BELL1

BELL SHALE

BERE

BEREA SANDSTONE

BRBD

BEREA-BEDFORD

BIG

BIG ANHYDRITE

BKRV

BLACK RIVER

BKRV1

BLACK RIVER SHALE

BBLC

BOIS BLANC

BRWN

BROWN LIMESTONE

BBLF

BURNT BLUFF

BYRN

BYRON

CBHD

CABOT HEAD

CMBR

CAMBRIAN

CTRC

CATARACT

CNCN

CINCINNATIAN

CLNN

CLINTON

CLCC

CLINTON-CATARACT

CLDR3

COLDWATER  SHALE

CLDR1

COLDWATER LIMESTONE

CLDR2

COLDWATER RED ROCK

CRDL

CORDELL

DRRV

DETROIT RIVER

DRRV1

DETROIT RIVER ANHY

DRRV2

DETROIT RIVER DOLOMITE

DRRV6

DETROIT RIVER EVAP

DRRV3

DETROIT RIVER GROUP

DRRV4

DETROIT RIVER SALT

DRRV5

DETROIT RIVER SZ

DORR

DORR ZONE

DRBC

DRESBACH

DUND

DUNDEE

ECLR

EAU CLAIRE

ELSR

ELLSWORTH

ELSR1

ELLSWORTH SHALE

FILR

FILER SANDSTONE

FRNC

FRANCONIA

GLVL

GALESVILLE

GDID

GARDEN ISLAND

GCDF

GLACIAL DRIFT

GLND

GLENWOOD

GDRV

GRAND RIVER

GRWS

GRANITE WASH

GLPH

GUELPH

HKFB

HENDRICKS-FIBORN

JBVL

JACOBSVILLE

JRSC

JURASSIC

LAC

LACHINE

LMID

LIME ISLAND

LCKP

LOCKPORT

LUCS

LUCAS

MNSQ

MANISTIQUE

MNLN

MANITOULIN

MRSL

MARSHALL

MRSLL

MARSHALL LOWER

MRSL1

MARSHALL SANDSTONE

MRSLU

MARSHALL UPPER

MSSV

MASSIVE ANHYDRITE

MSSV1

MASSIVE SALT

MCGN

MICHIGAN FORMATION

MCGN1

MICHIGAN STRAY

MCGN2

MICHIGAN STRAY SANDSTONE

MSSP

MISSISSIPPIAN

MONRM

MONROE MIDDLE

MNSM

MOUNT SIMON

MNSG

MUNISING

NRCM

NEW RICHMOND

NGRN

NIAGARAN

NGRN1

NIAGARAN BROWN

NGRN2

NIAGARAN GRAY

NGRN3

NIAGARAN WHITE

NOR

NORWOOD

ONOT

ONEOTA

PARM

PARMA SANDSTONE

PAX

PAXTON

PSLV

PENNSYLVANIAN

PSALT

POTASSIUM SALT

PRFM

POTTER FARM

PRDC

PRAIRIE DU CHIEN

PCMB

PRECAMBRIAN

PCMB3

PRECAMBRIAN GRANITE

RDBD

RED BEDS

RRCK

REDROCK

RDCT

REED CITY

RDCT1

REED CITY ANHYDRITE

RDCT2

REED CITY DOLOMITE

RCFD

RICHFIELD

RGRC

ROGERS CITY

SGNW

SAGINAW

SLIN

SALINA

SLIN1

SALINA B

SLIN2

SALINA B ANHYDRITE

SLIN3

SALINA B SALT

SLIN4

SALINA C SHALE

SLIN5

SALINA D SALT

SLIN6

SALINA E

SLIN7

SALINA F

SLIN8

SALINA F SALT

SLIN9

SALINA G

SHKP

SHAKOPEE

SLRN

SILURIAN

SQBY

SQUAW BAY

STPR

ST PETER

SRSR

STRAY-STRAY SANDSTONE

SNBR1

SUNBURY SHALE

SLVN

SYLVANIA

SLVN1

SYLVANIA SANDSTONE

TRVR

TRAVERSE

TRVR1

TRAVERSE CHERT

TRVR2

TRAVERSE FORMATION

TRVR3

TRAVERSE GROUP

TRVR4

TRAVERSE LIMESTONE

TMPL

TREMPEALEAU

TRNN

TRENTON

TBRV

TRENTON-BLACK RIVER

TRPL

TRIPLE GYPSUM

UTIC

UTICA