Lord Of The Rings: The Return Of The King filmed at Ben Ohau Station, Twizel. The climactic Pelennor Fields battle was filmed on this high-country station near Lake Pukaki. On screen it's Pelennor Fields.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer.
Planning the trip? The New Zealand travel atlas covers money, language and getting aroundand everything filmed in Twizel is on one page
Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Twizel and it tells you what was shot around you, how to get there, and whether you can actually go in.
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