I've said this over and over again, don't duck ropes at GTR.
Yesterday, a guest at Grand Targhee Resort decided to not heed the well signed Bounadry, ducked under a Boundary Rope, walked out onto a cornice, which resulted in the cornice breaking and falling (with the guest) onto the slope below, which caused an avalanche. The Avalanche ran for over 1500' vertical.
GTSP and Teton County SAR responded and the guest was found by one of the GTSP K9s. The guest was deceased.
Again and again, I've stated to give the Tetons the RESPECT THEY DESERVE.