Wyoming, Grand Teton National Park. On 18 July, Lendol Leach (19) and six companions had gone on an overnight trip to Waterfall Canyon. They had left the marked trail and got into what was described as off-trail rock scrambling. While they were attempting to ascend a steep rock and brush covered slope Leach slipped and fell to his death.
Source: John M. Morehead and F. Douglas McLaren, District Rangers, Grand Teton National Park.
Analysis: Complete lack of experience and disregard of any safety practices that might have been necessary for this type of travel.