Elbow, Bow, Highwood, Crow, Castle, Oldman, Kananaskis, North Saskatchewan, Athabasca, Sheep and on and on and on.
Big double bunny streamers and other large streamers work great. Large Stones fished deep can work and I have caught bulls on nymps and dries.
Hire a guide for a walk and wade targeting bulls and cutts or do a real good google search and dig up some more info or dig deeper into this forum and I'm sure you will find some great info.