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Surficial Maps
(Includes suficial geology, drift thickness, three-dimensional, soils and parent materials, construction conditions, orthophoto imagery, overburden thickness)
Quadrangle
Construction Conditions |
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| Villa Grove | |||
Drift Thickness |
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| Antioch | Beecher West/Steger | Crystal Lake | Spring Bay |
| Villa Grove | |||
Orthophoto Imagery |
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| Villa Grove | |||
Poster |
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| Villa Grove | |||
Soils and Parent Materials |
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| Spring Bay | |||
Surficial Geology |
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| Alton | Antioch | Aurora North | Barrington |
| Beecher West/Steger | Bethalto | Big Rock | Collinsville |
| Columbia | Creal Springs | Eddyville | Edwardsville |
| Elburn | Elsah | French Village | Geneva |
| Grafton | Granite City | Grantfork (IPGM) | Grantfork (IGQ) |
| Grays Lake | Highland | Huntley | LaSalle |
| Lebanon | Leland | Leonore | Libertyville |
| Maple Park | Marengo North | Marine | Marseilles |
| Mascoutah | McHenry | Metropolis | Millstadt |
| Monks Mound | New Douglas | Oakville | O'Fallon |
| Ottawa | Pingree Grove | Prairietown | Richmond |
| Sheridan | Spring Bay | Spring Valley | St. Jacobs |
| Starved Rock | Stonefort | Sugar Grove | Tonica |
| Wadsworth | Wauconda | Wood River | Worden |
Three-dimensional Model |
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| Antioch | |||
County
Regional
Statewide (8½ × 11)
Drift thickness
Loess thickness
Quaternary deposits
Surface topography
State of Illinois | Illinois Department of Natural Resources | University of Illinois