Never been to Alaska, never cut birch at 30 below.
I've cut maples and oaks at 5 below,
never cut anything as hard as old dry locust.
It will make you think you got into something, until you try the saw
in other wood. Suddenly it cuts good again. Green, it's not so bad, saw self feeds
and nice big chips.
Frozen wood is definitely worse in one way,it dulls the chain.
