...And as another example, the rules talk about "sites" and the "treasure" they might contain:
A Knight’s journey largely focuses on travelling great distances to seek the guidance of Seers and uncover Myths.
However, on occasion there may be the need to zoom in on a single Hex, or a specific site within a Hex, in more detail.
Sites can be created as areas that warrant more detailed exploration, whether ancient tombs, hostile castles, twisting caverns, or misty woods spanning the entire Hex.
But the rules have nothing more to say about
when and
why there would be the "need" to provide this sort of site-level treatment of a place of interest.