Fellow Fly Fishers -
My wife, son and I are planning our next summer vacation and are considering western Canada especially the area around Banff National Park, Jasper, and Glacier parks in Alberta.

I've been to Calgary on business a few times, but never over in the mountains. I have a ton of questions before we start seriously planning:

What kind of fishing opportunities exist in these areas?
What are fishing regulations in the area? Inside parks and outside parks? (for an American tourist)
Anything special to watch for (other than bears)?

What am I missing and what questions should I be asking?

Thanks,
Jeff