Standard Western American. I think there is a slight Montana twang (different from the Southern twang) when I get loud.

I used to use a lot of Pacific Northwest-isms, as well as weird pronunciations from way up there in Puget Sound Land, but I trained myself out of a lot of those when I moved away as a kid and people started making fun of me. xD You never really realize you have an accent until you move away and people point it out to you.