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USGS NGMDB: East Winston-Salem quadrangle
From the National Geologic Map Database site: "Geologic map of the east half of the Winston-Salem quadrangle, North Carolina-Virginia" -
USGS NGMDB: West Winston-Salem quadrangle
From the National Geologic Map Database site: "Geologic map of the west half of the Winston-Salem quadrangle, North Carolina, Virginia, and Tennessee" -
Geologic Map of the Charlotte 1 degree × 2 degrees Quadrangle, North Carolina...
The geodatabase for the Charlotte 1 degree × 2 degrees quadrangle by Goldsmith and others (1988) was compiled in the Geologic Map Schema (GeMS). The geologic map extends across...
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