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USGS Thesaurus
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USGS Quadrangles
Corbin
quadrangle 1:250,000 scale
Subtopics
Cookeville
Corbin
Oak Ridge
Tompkinsville
See also
Kentucky
Mississippian aquifers
Ohio
Ordovician aquifers
Pennsylvanian aquifers
Silurian-Devonian aquifers
Tennessee
Tennessee
Valley and Ridge aquifers
Valley and Ridge carbonate-rock aquifers
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