Michigan  search
BTUnited States
 .Michigan
NTMichigan Lower Peninsula
 Michigan Upper Peninsula
RTCanadian Shield
 Animikie Group
 Antrim Shale
 Baraga Group
 Bass Islands Dolomite
 Berea Sandstone
 Charlevoix
 Clinton Group
 Copper Harbor Conglomerate
 Detroit River
 Detroit River Group
 Dundee Limestone
 Eau Claire Formation
 Freda Sandstone
 Glenwood Shale
 Grand
Michigan Basin  search
BTNorth America
 .Michigan Basin
UFLake Michigan Basin
RTOntario
 Illinois
 Indiana
 Ohio
 Wisconsin
 Michigan Lower Peninsula
 Michigan Upper Peninsula
 Michigan
 Bass Islands Dolomite
SNTerm revised in 1989. Structural basin with its center in the Michigan Lower Peninsula. Located in NE Illinois, N Indiana, Michigan, NW Ohio, E Wisconsin and W Ontario. Indexed with states and province as applicable.
Michigan Lower Peninsula  search
BTUnited States
 .Michigan
 ..Michigan Lower Peninsula
NTAlcona County Michigan
 Allegan County Michigan
 Alpena County Michigan
 Antrim County Michigan
 Arenac County Michigan
 Barry County Michigan
 Bay County Michigan
 Benzie County Michigan
 Berrien County Michigan
 Branch County Michigan
 Calhoun County Michigan
 Cass County Michigan
 Charlevoix County Michigan
 Cheboygan County Michigan
 Clare County Michigan
 Clinton County Michigan
 Crawford County Michigan
 Eaton County Michigan
 Emmet County Michigan
 Genesee County Michigan
 Gladwin County Michigan
 Grand Traverse County Michigan
 Gratiot County Michigan
 Hillsdale County Michigan
 Huron County Michigan
 Ingham County Michigan
 Ionia County Michigan
 Iosco County Michigan
 Isabella County Michigan
 Jackson County Michigan
 Kalamazoo County Michigan
 Kalkaska County Michigan
 Kent County Michigan
 Lake County Michigan
 Lansing Michigan
 Lapeer County Michigan
 Leelanau County Michigan
 Lenawee County Michigan
 Livingston County Michigan
 Macomb County Michigan
 Manistee County Michigan
 Mason County Michigan
 Mecosta County Michigan
 Midland County Michigan
 Missaukee County Michigan
 Monroe County Michigan
 Montcalm County Michigan
 Montmorency County Michigan
 Muskegon County Michigan
 Newaygo County Michigan
 Oakland County Michigan
 Oceana County Michigan
 Ogemaw County Michigan
 Osceola County Michigan
 Oscoda County Michigan
 Otsego County Michigan
 Ottawa County Michigan
 Presque Isle County Michigan
 Roscommon County Michigan
 Saginaw County Michigan
 Saint Clair County Michigan
 Saint Joseph County Michigan
 Sanilac County Michigan
 Shiawassee County Michigan
 Tuscola County Michigan
 Van Buren County Michigan
 Washtenaw County Michigan
 Wayne County Michigan
 Wexford County Michigan
UFLower Peninsula, Michigan
 Southern Peninsula, Michigan
RTm
 Lake Saint Clair
SNS part of state S of Straits of Mackinack. Before 1981, search Michigan AND Lower Peninsula; Southern Peninsula. Added to Thesaurus in 1981.
Michigan Upper Peninsula  search
BTUnited States
 .Michigan
 ..Michigan Upper Peninsula
NTAlger County Michigan
 Baraga County Michigan
 Chippewa County Michigan
 Delta County Michigan
 Dickinson County Michigan
 Gogebic County Michigan
 Houghton County Michigan
 Iron County Michigan
 Keweenaw County Michigan
 Keweenaw Peninsula
 Luce County Michigan
 Mackinac County Michigan
 Marquette County Michigan
 Menominee County Michigan
 Ontonagon County Michigan
 Porcupine Mountains
 Schoolcraft County Michigan
UFNorthern Peninsula, Michigan
 Upper Peninsula, Michigan
RTMichigan Lower Peninsula
 Michigan Basin
SNN part of state between Lake Michigan and Lake Superior. Before 1981, search Michigan AND (Upper Peninsula OR Northern Peninsula). Added to Thesaurus in 1981.