My brother in law and I fished around Sun Valley the last week in July and first week of August this past summer. We used Lost River Outfitters for some guiding (liked the guide) and fished by ourselves the rest of the time. We fished the Big Lost, Big Wood and several other streams. We were told at several outfitters, that the fishing was the "best" it had been in years. We thought it was good, but not great. The fish were of good size (I caught an honest 20" cutthroat) but were not terribly plentiful. They seemed to like a local dry fly pattern called a Purple Haze more than anything else. When we were without a guide, access to good fishing was OK but took some work. I had never been to Sun Valley before and it is gorgeous. The mountain biking and hiking were wonderful. The best part of the trip may have been the food. The restaurants were not inexpensive, but they were far better than places we had fished before. I have not fished Park City to make a comparison.
