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12. Quaternary geologic map of the Lake of the Woods 4° x 6° quadrangle, United States and Canada
13. Quaternary geologic map of the Dallas 4° x 6° quadrangle, United States
14. Quaternary geologic map of the Lake Nipigon 4° x 6° quadrangle, United States and Canada
15. Quaternary geologic map of the Platte River 4° x 6° quadrangle, United States
16. Quaternary geologic map of the Austin 4° x 6° quadrangle, United States
17. Quaternary geologic map of the Monterrey 4° x 6° quadrangle, United States
18. Quaternary geologic map of the Mount Katmai quadrangle and adjacent parts of the Naknek and Afognak quadrangles, Alaska
19. Quaternary geologic map of the Ottawa 4° x 6° quadrangle, United States and Canada
20. Quaternary geologic map of the Ozark Plateau 4° x 6° quadrangle, United States
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