245 resultados para Conservation and Survey Division


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"Examines an area in extreme northwestern Illinois formed by the Galena, Apple, and Plum River systems ... designated a state Resource Rich Area."--P. iii.

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Examines six subbasins of the Du Page River, covering approximately 372 square miles in northeastern Illinois, mostly in Du Page and Will Counties with small portions in Cook, Kane, Kendall, and Grundy Counties. One subbasin, the East Branch Du Page River, has been designated a state "Resource Rich Area".

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Errata sheet inserted.

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Each volume also has a distinctive title.

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Do not confuse with the Annual report of the chief, Illinois Natural History Survey Division.

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Title from cover.

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Vols. 1 and 3 published 2000; v. 2 and 4: 1999.

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Examines an area of 357.5 miles in northeast Illinois--much of which is a part of the Greater Chicago Metropolitan Region. The area includes eight subbasins, of which two have been designated a state Resource Rich Area.

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"Examines an area in northwestern Illinois formed by the Rock and Green River systems ... designated a state Resource Rich Area"--P. iii.

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Writer: Kirby Pringle.