The map features the Southbound Tahoe to Yosemite Trailhead via Kennedy Meadows Pack Station along Highway 108. 2.67 mile hike from the gate at Kennedy Meadows we encounter the trail East to Kennedy Lake. At 5.37 miles from the Kennedy Meadows gate we encounter the trail junction on the Southeast end of Relief Reservoir dividing the trail to Relief Valley from our route up to Brown Bear Pass.
This map contains two updates to the USGS topographic backpacking map.
The first is between the lower and upper footbridges just South of the Kennedy Meadow Trailhead. The trail no longer loops West through the dry canyon but is cut into the rock above the West bank of Summit Creek. I have not hiked the old route so I did some investigation. I hiked the new route carefully so I could depict it on the map above, and consulted with Marty about the route of the old trail. Marty works with Matt Bloom at Kennedy Meadows Pack Station.
Marty is one of Matt Bloom's professional backcountry horsepackers and an all-around knowledgable hand on High Sierra travel, trails, and terrain.
Marty: "It's a Jumble."
Map Correction #2
Above and South of the upper footbridge the trail splits between two short route options which rejoin on the flat above the upper footbridge. This short trail split is fairly inconsequential, but from the flat the trail South is different from the USGS map's depiction.
The trail South first encounters the junction for the trail heading East to Kennedy Lake then the now-empty site where PG & E's Relief Cabin once sat.
I have depicted the current route as of July 2012 on the map above.
Map Problems Solved above
TYT Trail South from lower footbridge on Summit Creek
TYT Trail route to Kennedy Lake trail junction