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21Published 1997Subjects: “...Sediments (Geology) Middle West Maps....”
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22Published 1993Subjects: “...Earthquakes Middle West Maps....”
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23Published 2003Subjects: “...Soils Middle West Maps....”
PURL leads to a screen from where the map and accompanying pamphlet may be downloaded. Adobe Acrobat Reader required
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24Published 1991Subjects: “...Geology Middle West Maps....”
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25Published 2001Subjects: “...Geology Middle West Maps....”
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27Reported historic asbestos prospects and natural asbestos occurrences in the central United States /by Van Gosen, B. S. (Bradley S.), 1960-Subjects: “...Asbestos mines and mining Middle West Maps....”
Published 2006
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For eastern U.S. asbestos mapping; see report 2005-1189:
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28Published 1982Subjects: “...Outdoor recreation Middle West Maps....”
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29Published 1986Subjects: “...Geology Middle West Maps....”
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30Published 1989Subjects: “...Forests and forestry Middle West Maps....”
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31by Zietz, Isidore, 1919-Subjects: “...Geomagnetism Middle West Maps....”
Published 1968
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32by Warren, David H.Subjects: “...Geophysics Middle West Maps....”
Published 1968
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33by Willden, Ronald (Charles Ronald), 1929-Subjects: “...Geology Middle West Maps....”
Published 1968
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34Transcontinental geophysical survey (35⁰-39⁰ N) : bouguer gravity map from 87⁰ to 100⁰ W longitude /Published 1968Subjects: “...Gravity anomalies Middle West Maps....”
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35Published 1994Subjects: “...Streets Middle West Maps....”
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36Published 1995Subjects: “...Biotic communities Middle West Maps....”
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37Published 1991“...Middle West Maps....”
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39Published 2001“...Middle West Maps, Topographic Periodicals....”
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