BEDROCK GEOLOGY OF MICHIGAN
PLV
CHC
BEDROCK GEOLOGY OF THE EASTERN UPPER PENNINSULA
MAC MACKINAC BRECCIA BBF BOIS BLANC FORMATION GIF GARDEN ISLAND FORMATION
BIG BASS ISLAND GROUP
SAL CHC SALINA GROUP SID SAINT IGNACE DOLOMITE PLV PAC POINT AUX CHENES SHALE ENG ENGADINE GROUP
MQG MANISTIQUE GROUP BBG BURNT BLUFF GROUP NSF CHS CABOT HEAD SHALE
CHC QUS QUEENSTON SHALE
FSS BHD BIG HILL DOLOMITE
STF AGR STONINGTON FORMATION BBF NSF USM CHC JAC UTICA SHALE MEMBER NSF CSM COLLINGWOOD SHALE MEMBER OBF AVS JAC TRN FSS AGR TRENTON GROUP MUN MGF BRG BLACK RIVER GROUP TMP SCF EVC MGF PDC PRAIRIE DU CHIEN GROUP IIF PDC SAQ CHO NIF BRG TMP PAF NIF TREMPEALEAU FORMATION AGR SCF CSM TRN JAC MGF GDQ JAC MUN USM MUNISING FORMATION AMF AVS MCG BRG AGR NIF AGR BIF STF AGR BHD HEM QUS AGR MGF MND CHS AGR INT BHD MCG BBG BDG DCF BBG BEDROCK GEOLOGY OF THE AVS ENG QUS WESTERN UPPER PENNINSULA PRG RAD MND RAD AVS BBG CHS QUF MQG MAC MACKINAC BRECCIA MQG CG RIF M TMP PAC ENG JAC JACOBSVILLE SANDSTONE BDG CHO FSS FREDA SANDSTONE MAC AGR SID NSF NONESUCH FORMATION SAL ENG GIF CHC COPPER HARBOR CONGLOMERATE MGF BBF INT OBF OAK BLUFF FORMATION BBG BBF DRG BBF PLV PORTAGE LAKE VOLCANICS DRG
SCF SIEMENS CREEK FORMATION QUF MQG BLS BBG ENG INT INTRUSIVE
QUF QUINNESEC FORMATION MUN TRG DDL PRG PAINT RIVER GROUP
RIF RIVERTON IRON FORMATION
BIF BIJIKI IRON FORMATION ANT CWT ANT NIF NEGAUNEE IRON FORMATION BER IIF IRONWOOD IRON FORMATION BE DCF DUNN CREEK FORMATION R BED BDG BADWATER GREENSTONE ELL MGF MICHIGAMME FORMATION GDQ GOODRICH QUARTZITE TRG S CWT UN AMF AMASA FORMATION ANT
HEM HEMLOCK FORMATION
MCG MENOMINEE & CHOCOLAY GROUPS
EVC EMPEROR VOLCANIC COMPLEX
SAQ SIAMO SLATE & AJIBIK QUARTZITE ELL PAF PALMS FORMATION MIF CWT CHO CHOCOLAY GROUP RAD RANDVILLE DOLOMITE
AUM ARCHEAN ULTRAMAFIC CWT AGR ARCHEAN GRANITE & GNEISSIC MIF
AVS ARCHEAN VOLCANIC & SEDIMENTARY
BAY
BEDROCK GEOLOGY OF THE LOWER PENNINSULA
RDB RED BEDS BAY GRF GRAND RIVER FORMATION
SAG SAGINAW FORMATION SAG SUN BAY BAYPORT LIMESTONE MIF MICHIGAN FORMATION
MAR MARSHALL FORMATION SAG CWT RBD CWT COLDWATER SHALE Y BA SUN SUNBURY SHALE SAG MIF BER BEREA SANDSTONE & BEDFORD
BED BEDFORD SHALE
ELL ELLSWORTH SHALE MAR
ANT ANTRIM SHALE TRG
TRG TRAVERSE GROUP ANT BLS BELL SHALE BAY DDL DUNDEE LIMESTONE BED DRG DETROIT RIVER GROUP MAR SSS SYLVANIA SANDSTONE
MAC MACKINAC BRECCIA GRF BBF BOIS BLANC FORMATION ER GIF GARDEN ISLAND FORMATION B BIG BASS ISLAND GROUP
SAL SALINA GROUP
SUN BED MIF ANT BAY
TRG DDL
CWT DRG
GIF TRG ELL SSS
ANT BIG I SAL
SOURCE Bedrock Geology of Michigan 1987, 1:500,000 scale, which was compiled from a variety of sources by the Michigan Department of Environmental Quality, Office of the Geological Survey.
Geo_Data Services, Michigan Center for 012.5 25 50 75 100 Geographic Information, Department of Information Technology DATE: 10/01/2005 Miles