Quadrangle Maps
Quadrangle mapping is conducted at the ISGS under a variety of programs.
Maps are published in specific series
based on the program under which they were created and the corresponding
level of scientific review. Geologic quadrangle maps can be accessed by
selecting links from the alphabetical list or the map.
EDMAP maps are not ISGS products. They are
included here because they can provide useful geologic information.
ISGS coal maps are listed separately.
ISGS oil and gas maps are accessible through the interactive map server, ILOIL.
Digital (GIS) data are available for some geologic maps.
Altenburg
Alton
Ames
Anna
Antioch
Arlington Heights
Aurora North
Aurora South
Ava
Bandana
Barrington
Beecher West
Berwyn
Bethalto
Big Rock
Blackhawk
Bloomfield
Blue Island
Brownfield
Brussels
Cache
Cahokia
Cairo
Calumet City
Carbondale
Carrier Mills
Cave In Rock
Chester
Chicago Loop
Chillicothe
Cobden
Collinsville
Columbia
Crab Orchard
Crab Orchard Lake
Creal Springs
Crystal Lake
Cypress
Dekoven
Dixon East
Dongola
Dunlap
Dyer
Eddyville
Edwardsville
Elburn
Elgin
Elmhurst
Elsah
Englewood
Equality
Evanston
Evansville
Fishhook
Foley
Forsyth
Fox Lake
Frankfort
Freeburg
French Village
Geneva
Gifford
Glendale
Goreville
Gorham
Grafton
Grand Detour
Granite City
Grantfork
Grayslake
Grayville
Hampshire
Harrisburg
Harvey
Hebron
Henry
Herod
Herrin
Highland
Highland Park
Hinsdale
Huntley
Jackson Park
Johnston City
Jonesboro
Joppa
Kaskaskia
Karbers Ridge
Karnak
Kellerville
Lacon
Ladd
LaSalle
Lake Calumet
Lake Zurich
Lebanon
Leland
Leonore
Libertyville
Lick Creek
Little Cypress
Long Creek
Long Point
Mackinaw
Makanda
Manhattan
Maple Park
Marengo North
Marengo South
Marine
Marion
Marseilles
Mascoutah
McClure
McHenry
Mermet
Metropolis
Mill Creek
Millstadt
Mokena
Monks Mound
Mt. Morris
Mt. Pleasant
Murphysboro
Naperville
New Athens East
New Athens West
New Douglas
Nutwood
Oak Hill
Oakville
O'Fallon
Olmsted
Oraville
Oregon
Ottawa
Paderborn
Paducah East
Palos Park
Park Ridge
Paducah NE
Pecatonica
Pingree Grove
Pittsburg
Pomona
Prairie Center
Prairie du Rocher
Prairietown
Pulaski
Putnam
Raddle
Ransom
Red Bud
Reevesville
Renault
Repton
Richmond
River Forest
Rockwood
Rome
Rosiclare
Rudement
Sag Bridge
Selma
Saline Mines
Shawneetown
Sheridan
Shetlerville
Smithland
Spring Bay
Spring Valley
St. Jacob
Starved Rock
Steger
Stonefort
Streamwood
Streator North
Streator South
Sugar Grove
Tamms
Tinley Park
Tonica
Troy Grove
Valmeyer
Vergennes
Vienna
Villa Grove
Vincennes
Wadsworth
Waltersburg
Ware
Warren
Waterloo
Wauconda
Waukegan
Welge
West Chicago
Wheeling
Willisville
Winfield
Wolf Lake
Wood River
Worden
Yorkville
Zion
Updated 05/17/2012 SLD