A friend emailed me this link, so I checked it out. Tunnel Meadow is about 14 miles due south of Mt Whitney, and about 5 miles southwest of Trail Peak, an easy hike from Horseshoe Meadows.
Another very obscure airplane patch:
http://yosemitephotos.net/main.php?g2_view=core.DownloadItem&g2_itemId=22551&g2_serialNumber=2
