Hreðarsdalr
Hreðarsdalr is a location mentioned in Old Norse sagas, specifically the Hávamál, a collection of wisdom poetry attributed to the god Odin. The name itself can be interpreted as "Hreðar's valley" or "valley of the strong ones," suggesting a place of significance or perhaps a geographical feature.
Within the Hávamál, Hreðarsdalr appears in stanza 111, where Odin recounts a trial or a difficult experience
The exact geographical location of Hreðarsdalr is unknown and likely symbolic rather than a literal place.