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Filters: Tags: Northern Prairies (X) > partyWithName: REQUIRED: The name of an organization or individual that developed the data set. (X)

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Grady Mann outline of the Prairie Pothole Region (PPR). This delineation is based on a map on page 2 from Mann, G. E. 1974. The Prairie Pothole Region - a zone of environmental opportunity. Naturalist 25(4):2-7.


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