Really seems odd that a flag was not noticed by anyone descending behind, or since. How did you determine that you lost it on the descent? Holding it your hand? In a pack? Pocket? Remember having or packing it at Trail Crest? Checking at the bottom of the switchers? Reason I ask is that I have found a few items many days or weeks after a trip that I thought I must have lost at a particular point only to have them turn up in the wrong pack compartment, under a car seat, in someone else's pack etc.
