. Bulletin. Natural history; Natural history. 440 Illinois Natural History Survey Bulletin Vol. 22, Art. 6 region for this area measuring only 821 boundary along the Mississippi River is of square miles, fig. 2. The terrain is rolling rugged limestone bluffs. The thick lime- to broken, figs. 5 and 25. The western stone formation here has impeded the de- Y// A ESS I 1 fZZk NORTHWEST HILLS BLACK PRAIRIE GLACIAL LAKES NORTHWESTERN SAND PRAIRIE WESTERN PRAIRIE CENTRAL SAND PRAIRIE GRAY PRAIRIE RIVER BLUFFS AND BOTTOMS. Fig. 2.—Map of Illinois showing the eight regions into which the state was divi
. Bulletin. Natural history; Natural history. 440 Illinois Natural History Survey Bulletin Vol. 22, Art. 6 region for this area measuring only 821 boundary along the Mississippi River is of square miles, fig. 2. The terrain is rolling rugged limestone bluffs. The thick lime- to broken, figs. 5 and 25. The western stone formation here has impeded the de- Y// A ESS I 1 fZZk NORTHWEST HILLS BLACK PRAIRIE GLACIAL LAKES NORTHWESTERN SAND PRAIRIE WESTERN PRAIRIE CENTRAL SAND PRAIRIE GRAY PRAIRIE RIVER BLUFFS AND BOTTOMS. Fig. 2.—Map of Illinois showing the eight regions into which the state was divided for the purpose of making the fur resource survey. The River Bluffs and Bottoms Region is the only one that is not Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Natural History Survey Division. Urbana, State of Illinois, Dept. of Registration and Education, Natural History Survey Division
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Keywords: ., booka, bookcentury1900, bookdecade1910, booksubjectnaturalhistory
