Jasper Fishing options
Try Lac Maligne. There are several good guides that work that lake, none that I know personally so I can't recommend. Look up "On-Line Sport & Tackle" located in Jasper 780-852-3630, they offer guided trips. Mid October in Jasper is risky weatherwise so don't build up expectations. It could be snowing and minus 10C or be bright and sunny and +15?
However, if you happen to be in/around Calgary. let me know!.
Pete AKA Frenchcreek from Calgary