I lived in Alaskafor about 13 years and up there it didn't really matter how you carry. They tried passing laws about this at one time,but it didn't last too long. I don't know for sure if there are laws concerning open or concealed carry now, but if there are, they are just ignored by all.
We've had constitutional CC since 2004. Open carry has always been legal.
Bars, courthouses, womens shelters, secondary school grounds are off limits (need to fix that one), persons carrying concealed have a duty to inform upon official contact by LE.
I only open carry when I'm engaged in some sort of outdoor activity. Otherwise I carry concealed and even when open carrying chances are I still have an anti-personnel device hidden on me IWB.