846 resultados para Illinois State Geological Survey
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Bibliography: p. 51-54.
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"Examines a karst/cave area in southwestern Illinois bordering the Mississippi River ... designated a state Resource Rich Area."--P. iii.
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"Examines the Spoon River basin in west central Illinois"--P. iii.
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"Examines an area in north central Illinois along the Wisconsin/Illinois border ... designated a state Resource Rich Area."--P. iii.
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Cover title.
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Examines a small area of southern Cook County and northeastern Will County in Illinois--a portion of which has been designated a state Resource Rich Area.
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"Critical Trends Assessment Program."--Cover.
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"Examines an area of more than 1,200 square miles in east central Illinois ... designated a state Resource Rich Area."--P. iii.
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Examines an area in east central Illinois along the Indiana/Illinois border designated a state Resource Rich Area.
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No. 1 (Preliminary report on organization and method of investigation) published without series title or number.
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Title from cover.
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Some vols. accompanied by separately paged supplements.
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"October 7, 1950."
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Latest issue consulted: Bulletin 31, published 1927.
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Mode of access: Internet.