National Geologic Map Database
Product Description Page
* See base map disclaimer below
- Links and Downloads:
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Publication (PDF, 13MB)
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Plate 1. Map of district IV, showing coal mines, and having special reference to the depth, position and distribution of No. 5 coal (PDF, 3.4MB)
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Plate 2. Sections showing the stratigraphic relations of the coal-bearing rocks in district IV (PDF, 62.5KB)
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Plate 3. Structural sections of the coal-bearing rocks in district IV (PDF, 1.3MB)
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Plate 4. Graphic average analyses of Illinois coals by beds (PDF, 142KB)
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Plate 5. Map showing the structure of the Canton and Avon quadrangles and an adjoining area, by means of contours on No. 2 coal and No. 5 coal (PDF, 1.2MB)
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Plate 6. Map of the Peoria quadrangle, showing the approximate elevation, in feet above sea level, of the surface of bedrock (PDF, 106KB)
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Plate 7. Stratigraphic sections from the Springfield quadrangle (PDF, 713KB)
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Plate 8. Structure map of the Tallula and Springfield quadrangles, lying mostly in Sangamon County, but partly in Menard County (PDF, 1MB)
* Names and boundaries are not necessarily authoritative, and are provided here solely for general orientation.