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12. Maps showing metallic mineral districts and mines in the Black Hills, South Dakota and Wyoming
13. Maps and seismic profiles showing thickness and distribution of postglacial deposits beneath the southern two-thirds of Lake Michigan
14. Map of debris-flow probability, San Mateo County, California
15. Lithotectonic terrane map of the North American Cordillera
16. Isopleth maps of uranium, thorium, cerium, lanthanum, and related elements in stream sediments of West Virginia
17. Isopleth maps of titanium, aluminum, and associated elements in stream sediments of West Virginia
18. Isopleth maps of pH and alkalinity in stream waters, and sodium in stream sediments of West Virginia
19. Isopleth maps of iron, manganese, vanadium, and related elements in stream sediments of West Virginia
20. Geologic maps of upper Cenozoic deposits in central California
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