I found this
Ritter Range Circumambulation - blow downs!!!!!From Reds Meadow up to the crossing of King Creek there were four major blow down piles. From King Creek to Granite Creek, including the trail from Corral Meadow to Hemlock Crossing and down and west to Granite Creek there are at least 500 blow downs. I am trying not to exaggerate. The Sierra National Forest people have major work to do. For about 25 miles we spent as much time walking around and over blowdowns as on the trail. Once the trail jogged left in the middle of a 100 yard blowdown and we spent a half hour looking for it. From the 7500' to 8800' level blow downed tree piles are everywhere. No rhyme or reason - north slopes, south slopes, etc. Trees in this elevation band tend to be big, and when in piles, can be awesome - a giant's hand just knocked 20 of them down willy nilly.
This route heads out of Devils Postpile (Reds Meadow), west over the crest between the San Joaquin's middle and north forks, entering Yosemite via Isberg Pass. They covered lots of little-used trail.
