First Knight filmed at Trawsfynydd Lake, Trawsfynydd. Part of the Camelot set stood beside this North Wales lake, with much of the city added digitally. On screen it's Camelot.
Probable Named in published production coverage; the coordinate is the place itself, checked against a gazetteer. This is an area, not a spot. The coordinate is its middle, so use it to navigate to the place and not to line up a shot.
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Venture keeps every scene location on one map, sorted by how far you'd have to walk. Open it in Trawsfynydd and it tells you what was shot around you, how to get there, and whether you can actually go in.
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