Moose Creek is indeed a special place. On your next visit hike up to the Ranger Station A historic place with lots of history. A volunteer caretaker will give you the history.
You just completed my bucket list trip!! As a pilot, backpacker and a fly fisherman I've been thinking about a trip like this for several years now. I had been thinking about accessing the Selway via the Magruder Corridor but your adventure looks even better. I'm going to add this to my itinerary for late next summer. Thanks for sharing your trip!