I climbed this couloir May 20, 2006. I'm pretty sure it's called Flattop Gully. According to Gillett, Flattop Gully saw its first ascent by Topher Donahue in 1999. Here's a movie I shot of our climb: http://www.leachfam.com/securearea/1movie.php?movieid=15. In 2006 it was totally melted out by June 25th.