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1987 BEDROCK GEOLOGY OF

BEDROCK GEOLOGY OF EASTERN UPPER PENINSULA

MACKINAC BRECCIA BASS ISLAND GROUP SALINA GROUP SAINT IGNACE DOLOMITE POINT AUX CHENES ENGADINE GROUP MANISTIQUE GROUP BURNT BLUFF GROUP KEWEENAW QUEENSTON SHALE BIG HILL DOLOMITE HOUGHTON MEMBER MEMBER TRENTON GROUP

ONTONAGON BARAGA PRAIRIE DU CHIEN GROUP TREMPEALEAU FORMATION

GOGEBIC LU CE MARQUETTE

ALGER CHIPPEWA

IRON MACKINAC SCHOOLC RAF T DELT A DICKIN SON

BEDROCK GEOLOGY OF WESTERN UPPER PENINSULA

MACKINAC BRECCIA JACOBSVILLE EMMET MENOMINEE CHEBOYGAN NONESUCH FORMATION PRESQUE ISLE COPPER HARBOR OAK BLUFF FORMATION CHAR LEVOIX PORTAGE LAKE VOLCANICS MONTMORENCY SIEMENS CREEK FORMATION ANT RIM ALPENA INTRUSIVE OTSEGO QUINNESEC FORMATION LEELANAU PAINT RIVER GROUP RIVERTON IRON FORMATION BIJIKI IRON FORMATION GRAND TR AVERSE ALCONA KALKASKA CRAW FOR D OSCOD A NEGAUNEE IRON FORMATION BENZIE IRONWOOD IRON FORMATION DUNN CREEK FORMATION BADWATER GREENSTONE

MICHIGAMME FORMATION MANISTEE WEXFORD MISSAUKEE ROSCOMMON OGEMAW IOSCO GOODRICH

HEMLOCK FORMATION BEDROCK GEOLOGY OF ARENAC MENOMINEE & CHOCOLAY GROUPS LOWER PENINSULA EMPEROR VULCANIC COMPLEX MASON LAKE OSCEOLA CLARE GLADWIN SIAMO SLATE & AJIBIK QUARTZITE RED BEDS HURON PALMS FORMATION FORMATION CHOCOLAY GROUP BAY RANDVILLE DOLOMITE BAYPORT MICHIGAN FORMATION ARCHEAN ULTRAMAFIC OCEANA MECOST A ISABELLA MIDLAND MARSHALL FORMATION ARCHEAN GRANITE & GNEISSIC NEWAYGO ARCHEAN VOL. & SEDIMENTARY TUSCOLA SANILAC BEREA SS & BEDFORD SH SAGIN AW MUSKEGON MONTCALM GRATIOT LAPEER ST CLAIR SHIAWASSEE

TRAVERSE GROUP KENT GENESEE OTT AW A IONIA CLINTON MACOMB OAKLAND MACKINAC BRECCIA INGHAM LIVINGSTON ALLEGAN BARRY EATON BOIS BLANC FORMATION GARDEN ISLAND FORMATION BASS ISLAND GROUP WAYNE SALINA GROUP WASHT ENAW VAN BUREN KALAMAZOO CALHOUN JACKSON

SOURCE BERRIEN MONROE CASS ST JOSEPH BRANCH HILLSDALE LENAWEE M ICHI GAN DEPARTM ENT O F NATURAL RESOU RCES Michi gan LAND AND MI NERALS SERVICES DIVISION RESOURCE M APPI NG AND AERI AL PHO TOG RAPHY RMAP Michigan Resource Inf orm ation System Part 609, Resource Inventory, of the Nat ural Resources and Environmental Prot ect ion Act, 1994 PA 451, as amended.

Autom ated from "Bedrock Geology of Mi chi gan, " 1987, 1:500, 000 scal e, which was com piled f rom a vari ety of sources by t he M ichi gan Depart ment of Environmental Qualit y, Geological Survey Division.

0 20 40 Miles Date: 1/30/01 N