The snow line is visible to Steve and I as we hike down to the bottom of the Grand Canyon (S. Kiabab Trail). Our High school aged sons ran down and the Dads walked and enjoyed the awesome views. It was about 30degrees at top and in the upper 50 degrees at the bottom. You get 1/10th of the adventure looking at the canyon from the top and the other 9/10th worth when you hike done spend a couple nights at Phantom Ranch and hike back out... a "bucket list" item for sure!! Just Do It!!