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12. Geologic map of Precambrian rocks of the Sierra Madre, Carbon County, Wyoming, and Jackson and Routt counties, Colorado
13. Geologic map of Precambrian rocks, southern Lake Superior region, Wisconsin and northern Michigan
14. Geologic map of the Peach Orchard Flat quadrangle, Carbon County, Wyoming, and descriptions of new stratigraphic units in the Upper Cretaceous Lance Formation and Paleocene Fort Union Formation, eastern Greater Green River Basin, Wyoming-Colorado
15. Geologic map of Upper Cretaceous and Tertiary strata and coal stratigraphy of the Paleocene Fort Union Formation, Rawlins-Little Snake River area, south-central Wyoming
16. Geologic map of upper Eocene to Holocene volcanic and related rocks in the Cascade Range, Washington
17. Geologic map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon
18. Geologic map showing distribution of Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana
19. Geologic map showing the Oligocene rhyolite canyon tuff in part of the Bruno Peak quadrangle, southeastern Arizona
20. Geologic map showing thickness of sedimentary rocks from ground surface to the top of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming
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