I vote with Eric. The Idaho fish-in is 320 miles farther west than Bozeman, but the fishing is uncrowded, the company is excellent, and the trout are fat and willing to look up.

If I was going to spend a week in the Bozeman area these days, it would be the first week of April or the end of October. The worse the weather, the better, too. I spent some time there on the way back from Idaho last fall and it was a serious disappointment after the fish-in. The old haunts ain't what they used to be, if you could even elbow your way in to them.