People have been funneled into these valleys with drastic results. The Dry River has seen more then one serious rescue and a few deaths, that were not found for awhile. The Great Gulf has also seen its share over the years. Absolutely dreadful terrain to descend in the winter if your off route. If your lucky enough to survive the steep slopes that are avalanche prone, your faced with deep snow and thick woods until you find a trail. That's where they finally found Hugh Herr and he was found by a random AMC hut person I believe just out looking. My memory is fading, but I think he was lost for three days. Not many of us, thought he was alive. I have always carried bailout points for the major traverses, none led me into any of these valleys.