This question has been itching in the back of my mind for a while now. So here it goes

It's a extremely cold winter location.
You don't know
>Region
>Time spent /out/
>What you are gonna have to do

What would you carry with you?
I want to see what some of you guys say. I understand this is close to the idea of bug out bags but at the same time what do you guys think you would like to have to be able to live /out/ almost indefinitely or for at least a very very long periods of time in very cold climates.

Everything has to be man portable preferably ≥65L and no more than about 80lbs I would say the idea of a pull behind sled is good but shoot any other suggestions if you have em.
Also assuming you will be able to gather water and food given you have the right equipment. IE rifle, water filter, pot ect