Hey to all you planning to do the icefields parkway:
My advice is to do it. I guarantee you will see some of the most incredible scenery and wildlife that you have ever seen. One morning camping by a stream, my friend, with whom I was travelling, motioned me to come over and see something. Looking down in the stream, I saw a huge elk walking upstream, followed 15 feet behind by a young one hurrying to keep up.Another time, Paul and I stopped and looked up and saw two mountain goats on top of about a 20 foot cliff bordering the left side of the road. Now the face of this rock wall was pretty much vertical. We stood there and watched these mountain goats walk down the face of that cliff. It was great.
It seems like it is about 600 or 700 miles from Jasper to Montana. You go through three national parks and by a real live glacier, the Athabasca glacier.
The only problem is that, to eat, you are pretty much stuck to the restaurants along the road, which are expensive and not that great. If you do find a grocery, stock up and carry as much as you can.
The parks aren't that wide there but I think the ride to civilization, which is east, takes you back down the mountain. Then, to return to the Icefields Parkway requires a big climb. So, if you feel strong, I'm sure you can restock on groceries along the way. (or find someone to drive the sag wagon for you.).
You won't regret a trip all the way down from Jasper. ---jason brashear