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22. East Greenwich quadrangle, Rhode Island 7.5 minute series (topographic) /
Geological Survey (U.S.). The Survey ;.
23. East Providence quadrangle, Rhode Island-Massachusetts 7.5 minute series (topographic) /
Geological Survey (U.S.). The Survey ;.
24. Ecoregions of Alabama and Georgia
The Survey ;.
25. Ecoregions of Indiana and Ohio /
The Survey ;.
26. Ecoregions of Tennessee /
The Survey ;.
27. Energy-resources map of the Circum-Pacific Region, Arctic sheet
Circum-Pacific Council for Energy and Mineral Resources. The Survey ;.
28. Florida, intracoastal waterway, Bahia Honda Key to Sugarloaf Key /
United States Coast Survey. The Survey ;.
29. Geodynamic map of the Circum-Pacific region, Arctic sheet
Circum-Pacific Map Project. The Survey ;.
30. Geologic investigations /
The Survey ;.