The Green Mile filmed at Flat Top Manor, Blowing Rock. The Georgia Pines nursing home, where the old warder tells his story, is this 1901 mansion, now home to a craft centre. On screen it's Georgia Pines nursing home.

Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
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Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Blowing Rock and it tells you what was shot around you, how to get there, and whether you can actually go in.
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