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USGS Thesaurus
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USGS Quadrangles
Davenport
quadrangle 1:250,000 scale
Subtopics
Aledo
Davenport
Iowa City
Muscatine
See also
Cambrian-Ordovician aquifer system
Illinois
Iowa
Mississippian aquifers
Silurian-Devonian aquifers
Upper Mississippi
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