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Geologic map of the Valley View quadrangle, Schuykill and Northumberland Counties, Pennsylvania
- "Geologic quadrangle map valley view quadrangle, Pennsylvania"
- "Valley View quadrangle, Schuykill and Northumberland Counties, Pennsylvania, geologic map"@en
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- "Geologic map of the Valley View quadrangle, Schuykill and Northumberland Counties, Pennsylvania"@en
- "Geologic map of the valley view quadrangle, Schuylkill and Northumberland counties, Pennsylvania"