Legend (EGLE/GrmdOpenData)

Bedrock Geology (0) MIDCONTINENT RIFT RED BEDS GRAND RIVER FORMATION SAGINAW FORMATION BAYPORT LIMESTONE MICHIGAN FORMATION MARSHALL FORMATION COLDWATER SHALE SUNBURY SHALE BEREA SANDSTONE & BEDFORD BEDFORD SHALE ELLSWORTH SHALE ANTRIM SHALE TRAVERSE GROUP BELL SHALE DUNDEE LIMESTONE DETROIT RIVER GROUP SYLVANIA SANDSTONE MACKINAC BRECCIA BOIS BLANC FORMATION GARDEN ISLAND FORMATION BASS ISLAND GROUP SALINA GROUP SAINT IGNACE DOLOMITE POINT AUX CHENES SHALE ENGADINE GROUP MANISTIQUE GROUP BURNT BLUFF GROUP CABOT HEAD SHALE MANITOULIN DOLOMITE QUEENSTON SHALE BIG HILL DOLOMITE STONINGTON FORMATION UTICA SHALE MEMBER COLLINGWOOD SHALE MEMBER TRENTON GROUP BLACK RIVER GROUP PRAIRIE DU CHIEN GROUP TREMPEALEAU FORMATION MUNISING FORMATION JACOBSVILLE SANDSTONE FREDA SANDSTONE NONESUCH FORMATION COPPER HARBOR CONGLOMERATE OAK BLUFF FORMATION PORTAGE LAKE VOLCANICS SIEMENS CREEK FORMATION INTRUSIVE QUINNESEC FORMATION PAINT RIVER GROUP RIVERTON IRON FORMATION BIJIKI IRON FORMATION NEGAUNEE IRON FORMATION IRONWOOD IRON FORMATION DUNN CREEK FORMATION BADWATER GREENSTONE MICHIGAMME FORMATION GOODRICH QUARTZITE AMASA FORMATION HEMLOCK FORMATION MENOMINEE & CHOCOLAY GROUPS EMPEROR VULCANIC COMPLEX SIAMO SLATE & AJIBIK QUARTZITE PALMS FORMATION CHOCOLAY GROUP RANDVILLE DOLOMITE ARCHEAN ULTRAMAFIC ARCHEAN GRANITE & GNEISSIC ARCHEAN VOLCANIC & SEDIMENTARY Bedrock Geology Features (1) ARCH MAJOR FAULTS LINEAMENTS PRECAMBRIAN-PALEOZOIC BOUNDARY BEDROCK VALLEY Designated Dune Areas (2) Gas Storage Fields (3) Inactive Coal Mine Extents (4) Inactive Mines All (5) COAL MINE EXPLORATION MINE PROSPECT <all other values> Quaternary Geology Features (6) DRUMLINS ESKERS SHORELINE SINKHOLES STRIATIONS/GROOVES GLACIAL LOBE BOUNDARY Sand And Gravel Operations (7) Quaternary Geology (8) Peat and muck Postglacial alluvium Dune sand Lacustrine clay and silt Lacustrine sand and gravel Glacial outwash sand and gravel and postglacial alluvium Ice-contact outwash sand and gravel Fine-textured glacial till End moraines of fine-textured till Medium-textured glacial till End moraines of medium-textured till Coarse-textured glacial till End moraines of coarse-textured till Thin to discontinuous glacial till over bedrock Artificial fill Exposed bedrock surfaces Water <all other values> Oil, Gas, and Mineral Well Bottom Hole Locations (9) Oil Well Natural Gas Well Gas Condensate Well Dry Hole Brine Disposal Well Gas Production and Brine Disposal Well Liquified Petroleum Gas Storage Well Gas Injection Well Gas Storage Well Gas Storage Observation Well Water Injection Well CO2 Injection Well Other Injection Well Observation Well Lost Hole Location Part 625 Disposal Well Part 625 Natural Brine Part 625 Solution Mining Part 625 Storage Well Part 625 Test Well Other Well Oil, Gas, and Mineral Well Surface Hole Locations (10) Oil Well Natural Gas Well Gas Condensate Well Dry Hole Brine Disposal Well Gas Production and Brine Disposal Well Liquified Petroleum Gas Storage Well Gas Injection Well Gas Storage Well Gas Storage Observation Well Water Injection Well CO2 Injection Well Other Injection Well Observation Well Lost Hole Location Part 625 Disposal Well Part 625 Natural Brine Well Part 625 Solution Mining Well Part 625 Storage Well Part 625 Test Well Other Well Oil, Gas, and Mineral Well Directional Lines (11) Oil and Gas Fields By Formation (12) Other Michigan Stray Berea Sandstone Antrim Shale Traverse Limestone Dundee Reed City Zone Detroit River Det. River Sour Zone Det. River Richfield Amhestsburg/Sylvania Salina A-1 Carbonate Brown Niagaran Burnt Bluff/Clin/Man Trenton/Black River PDC/Glenwood County Antrim Shale