Napoleon Dynamite filmed at St Anthony Sand Dunes, St Anthony. Grandma is hurt riding a bike here, leaving the boys in Uncle Rico's care. The dunes are a popular spot for dune buggy riders.
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 St Anthony and it tells you what was shot around you, how to get there, and whether you can actually go in.
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