Well I did it, the killer dayhike to "Hell". Up Summit Cr. into East Cr. jump into Colorado Creek, transition over to Fox Creek, have lunch, explore two side valleys in Colorado Creek on the way out. 10 hours & 45 Minutes. Colorado Creek is awful. One Grizzly, and one Black Bear at 10 feet. I was able to call him up close, making crying sounds. I got the grizzly to turn and start coming, but he got skid dish and would not come. Was a good day hike. No Caribou, No Sheep, No Humans.