GlennM, landmarks work in good visibility. In poor visibility, you either stay put or follow a compass bearing. Judging by reports from those years, tourists weren't taught how to navigate in near-zero visibility.
If the weather had cleared, the group could have returned using the buttes as a guide.
A person in front of you is a land mark , a rock , a tree . Its like lining sights on a gun. You have a tree 200m away and some close , you aim along that bearing.
The tourists might not know where they are exactly plus they had to leave the tent . The tent could have been covered with snow drifts and the foot prints. How on earth would you find the tent again?.
Whats buttes?
As I said elsewhere in this. It doesn't matter if you have zero visibility or perfect visibility. You have a map and a compass, and therefore, the Dyatlov Group would know where they were at any particular time.
SarapukThanks for the reply , i wonder if you could read all the posts in a thread first then reply in just a single post?. It makes it easier to read and follow.
First of all you seem to be getting confused about what their maps were and how good they were and secondly what getting lost actually means.
It seems they got lost locally in the forest and trails and when coming to the pass. They knew they were in the correct general area but not sure which direction was best. This seems to be referenced in the amusing photo of Zolo sitting with his hand in cheek while Igor is looking at a map.
It really depends on the detail of the map and the features and obstacles . If they were basically hand drawn and only highlighted hill peaks, valleys and rivers then caution would need to be taken in poor visibility. For example , when they stopped to erect the tent on 1079 , and if it was a white out , they may know where they are within 1-200 meters . Thats not being lost but it is a problem if you need accuracy and if you hear noises in the night , you may fear things as doubt enters the thoughts. 1079 is quite steep in areas. They may not know where they are in relation to its peak.
When they left the tent , and ignoring whatever reason that was , it may have been in the dark ,although dark if the sky is good then visibility can be quite good , they did not have maps when they left the tent but they could take a bearing from their compass and they would know which way the forest was.
Now , its not about not knowing where you are ,its about recognising they had to find buried treasure, the treasure being the tent and its contents. Leaving the tent for 1.5 km and returning to it the next day is no big deal, but only in ideal conditions . That is , if the tent wasn't covered in snow , it was clear weather on the return, it wasn't white out .
To time the distance you walk away from an exact location gives you something to work with when you need to find it again , especially when you have nothing else at your disposal. Its something i would do.
The OP was asking about the two watches and if there was any significance to the times of their stoppage. The reality remains that they may have been timing their activity when moving through the day . This would give them their speed travelled over a whole day so they know they are traveling at x/kph.
Sharing these responsibilities among the group would be sensible and part of delegating tasks to others. So that's one reason and another maybe to hand it to the next night duty person when its their shift .
That's as exciting as it gets. The two reasons above have been done in other hikes. It is i that suggest that the watches may have been used to time the decent in order that they have a time stamp to go back up the slope and narrow down their search area if the tent had been covered by snow. It would be essential to be able to find it quicker.