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Iowa NRCS: Bopp-Beringer-Crock-13
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Iowa NRCS: Bopp-Beringer-Crock-16
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Iowa NRCS: Bopp-Beringer-Crock-21
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Iowa NRCS: Bopp-Beringer-Crock-23
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Iowa NRCS: Bopp-Beringer-Crock-05
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Iowa NRCS: Bopp-Beringer-Crock-09
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Iowa NRCS: Bopp-Beringer-Crock-11
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Iowa NRCS: Bopp-Beringer-Crock-12
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Iowa NRCS: Bopp-Beringer-Crock-38
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Iowa NRCS: Bopp-Beringer-Crock-27
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Iowa NRCS: Bopp-Beringer-Crock-30
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Iowa NRCS: Bopp-Beringer-Crock-01
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Iowa NRCS: Bopp-Beringer-Crock-20
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Iowa NRCS: Bopp-Beringer-Crock-02