The Dyatlov_Pass_incident remains unsolved. That's not to say that there isn't a plausible account of what happened.
https://www.mentalfloss.com/article/645349/disneys-frozen-dyatlov-pass-mystery-breakthrough
A straightforward explanation is usually enough to get people to move along thinking that it's all been resolved.
However, it's the curiosity of the anomalies that keeps some people to look much deeper into The+Dyatlov+Pass mystery.
https://dyatlovpass.com/theories
Anomalies
Infrasound
Gravity fluctuation
https://dyatlovpass.com/trek-photos
https://paranormal-intersection.blogspot.com/search?q=Dyatlov+Pass