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12. Geologic map of upper Eocene to Holocene volcanic and related rocks of the Cascade Range, Oregon
13. Geologic map showing distribution of Cretaceous intrusive rocks in the central Big Belt Mountains, Broadwater and Meagher counties, Montana
14. Geologic map showing the Oligocene rhyolite canyon tuff in part of the Bruno Peak quadrangle, southeastern Arizona
15. 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
16. Geologic map showing thickness of sedimentary rocks from the ground surface to the top of the upper Cretaceous Pierre Shale in the south half of the Powder River Basin, northeastern Wyoming and adjacent areas
17. Geologic map showing thickness of the upper Cretaceous Pierre Shale in the north half of the Powder River Basin, southeastern Montana and northeastern Wyoming
18. Geologic map showing thickness of the upper Cretaceous Pierre Shale in the south half of the Powder River Basin, northeastern Wyoming and adjacent areas
19. Geologic maps of upper Cenozoic deposits in central California
20. Geology and tectonic significance of early Proterozoic rocks in the Monico area, northern Wisconsin
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