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USGS Quadrangles
Harrisburg
quadrangle 1:250,000 scale
Subtopics
Carlisle
Harrisburg
State College
Sunbury
See also
Early Mesozoic basin aquifers
Mid Atlantic
Mississippian aquifers
Pennsylvania
Piedmont and Blue Ridge carbonate-rock aquifers
Piedmont and Blue Ridge crystalline-rock aquifers
Valley and Ridge aquifers
Valley and Ridge carbonate-rock aquifers
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