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12. Bedrock geologic map of the St. Louis 30ʹ x 60ʹ quadrangle, Missouri and Illinois
13. Bedrock geologic map of the West Dover and Jacksonville quadrangles, Windham County, Vermont
14. Bedrock geologic map of the Williamstown and North Adams quadrangles, Massachusetts and Vermont, and part of the Cheshire quadrangle, Massachusetts
15. Geologic and structure map of the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming
16. Geologic and structure map of the south half of the Powder River Basin and adjacent areas, northeastern Wyoming
17. Geologic and structure map, with contours on top of the Pierre Shale, for the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming
18. Geologic and structure map, with contours on top of the Pierre Shale, for the south half of the Powder River Basin, northeastern Wyoming
19. Geologic and structure maps of the Kalispell 1° x 2° quadrangle, Montana, and Alberta and British Columbia
20. Geologic and structure maps of the Salt Lake City 1° x 2° quadrangle, Utah and Wyoming
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