The Godfather Part II filmed at Fleur du Lac Estates, South Lake Tahoe. The Corleone estate; now private residences, visible from the water only. On screen it's Lake Tahoe, Nevada.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in South Lake Tahoe and it tells you what was shot around you, how to get there, and whether you can actually go in.
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