Similar to Heart Lake, Rogers Pass Lake is super fun to fish. I've found a ton of fish (Cuttys) near the outlet. Keep in mind, this area sees a lot of pressure and traffic. The fish are easily spooked. I've had success using dries such as Amy's Ant and Elk Hair Caddis. A small leach or Peridgon may yield some results. 

This area see's a lot of traffic from hikers and backpackers.