992 resultados para Illinois State Water Survey
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This report is the fourth in a series to assess the availability of coal resources for future mining in Illinois.
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Includes bibliographical references (p. 39-40).
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Includes bibliographical references (p. 50-52)
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Includes bibliographical references (p. 41-43).
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At head of title: Legal research materials.
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Mode of access: Internet.
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Bibliography: p. 124-136.
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Examines a 1,731 square mile area in southern Illinois which has been designated a state Resource Rich Area.
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"Critical Trends Assessment Program."--Cover.
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Mode of access: Internet.
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"The Calumet area assessment examines 184.3 square miles (117,961 acres) in northeast Illinois."--P. iii.
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"May 1992."
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Title from caption.
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Cover title.
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"March 1992"