Pedzisa mutsara unotevera:
Mukuburuka muna 2002, Sullivan akapedza wechipfumbamwe nenzira inoshamisa panzira yeGrizzly paSnowbasin, Utah. Akanga ari mumhanyi wechi31 kubva pagedhi rokutanga uye akanga ari iye oga wokuNorth America pakati pevakapedza gumi nevashanu.