This was our route back from the Green Lakes variation of the South Sister. Shortly after leaving the main trail at the lake just below 9000 ft, we made our way to the snow fields... The glissader here, Trevin Ziegler, was hesitant to give it a try, but warmed up quickly after he watched me for a bit (my tracks on the left) and saw how fun it is! I estimate we glissaded for just short of 2 miles and 2000 ft. elevation drop. Easily the longest and most enjoyable glissade I've done so far.