Hi Jeff - when you say "missed the turn", do you mean you spun out to the right (west)? I ask because I did something similar on the way down, but still have not figured out on the map exactly where I made my mistake. All I remember at the crucial mistake point was staring down a very steep glacier in confusion, thinking "how did I walk up THAT?" So I went off to the right of it, noting a crevasse that had separated the glacier from the ridge but not thinking clearly, likely due to physical exhaustion. I ended up an hour's walk away on RTM trail until I rejoined the South climb trail. Obviously, it was most likely not Crescent Glacier that I steered clear of... but I would like to know what I did so I don't repeat it when I return.