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USGS Thesaurus
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USGS Quadrangles
Alexandria
quadrangle 1:250,000 scale
Subtopics
Alexandria
Leesville
Natchitoches
Winnfield
See also
Arkansas-White-Red
Coastal lowlands aquifer system
Louisiana
Lower Mississippi
Mississippi River Valley alluvial aquifer
Mississippi embayment aquifer system
Texas
Texas coastal uplands aquifer system
Texas-Gulf
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