I agree with the others about fishing the road system. If there are fish it is usually too crowded to really enjoy fly fishing. I personally don't like Rust that much, they are very big, rather impersonal, and will drop you anywhere whether there are fish there or not. Again, that is my opinion. Trail Ridge Air, Trail Ridge Air Service
, won't put you somewhere where they know there are no fish and if you want to day fish they have guides too. If you want an exciting fly out trip, check out Hitaluga Guide Service's website. Good luck!