Im living In WA now, and would LOVE to do this, if you don't mind, where do you go, and is there some place i can rent a snowmobile from??
Do you have experience riding in the backcountry? If not, this is a bad thing to just try out for the first time.
I assume these guys have experience, avy gear, and go with other guys that know what they are doing.
Sorry if I sound like your mom or something, but I always wanted to do this stuff too, but the more you learn, the more you realize it can be pretty dangerous and you really need to know what you are doing. I am starting out small with some avy gear and learning more while sticking to the slack country.