Let me explain my thoughts for those who do not have a map of the route.
They had a circular route (or a triangular route) Vizhay - Otorten - Oiko-Chakur - Vizhay.
The storage facility (labaz) was planned in 2 places (15 km from Otorten and 15 km from Oiko-Chakur).
By the way, Mount Oiko-Chakur is higher (like Chistop), and Mount Otorten is lower (even lower in old data).
But Dyatlov had already been to Chistop and Oiko-Chakur, he wanted to visit Otorten and for some unknown reason wanted to visit Oiko again.
Usually modern tourists make a radial route Vizhay - Otorten - Manpupuner - Otorten - Vizhay, i.e. there and back.
Dyatlov's failed route has not been repeated by anyone.
This movement along the ridge between Otorten and Oiko-Chakur is very strange. What didn't they see there?
Perhaps Dyatlov (or Dubinina) wanted to visit Otorten, but then the route would be 200 km.
To increase the route to 300 km, they made it so incomprehensible.
Many tourists had poor eyesight (Dyatlov, Dubinina, Thibault-Brignolle). Doroshenko had poor eyesight in general.
What could they see around them? But if the route was a sport one, then it becomes clear.
I think that the cause of death of all the tourists was an irresistible force, in several stages.
Investigator Ivanov wrote this in the newspaper in 1990:
This means that there was some terrible force that not only frightened them, but also forced them to leave the tent and seek shelter below, in the taiga. The task of the investigation was to find this force or at least get closer to it.