Share 'Canada Gas price's'

So, me and a couple of friends are about the drive from Detroit to Healy Alaska in about a week. Going into Canada in Montana, and I was wondering if anyone had an idea of what gas price's will be in BC and the Yukon. Also if anyone had any idea's on where to stay/get gas that would be great too. Maybe if you wanted to throw in some fun things to do, or check out along the trip too. Thanks fo...