We caught some nice fish. Everything we read prior to going out there indicated that these rivers were dry fly hot spots. It probably is during the special hatch periods, but we used almost exclusively wooly buggers with caddis nymph droppers. I did catch one very nice brown on a Royal Wulff. I saw him feeding on top and caught him on the first cast. I think the picture you are referring to is actually my friend Steve. The lake in the background was beautiful. In fact that area was really special. Unfortunately, we did not go there until we were on our way back to Denver.
I know you know this since you have a relative on the Gallatin, but go to Montana if you want great fishing with river access.
I don't live just to fish, but I want to fish just as long as I live.