SLIP ON ROCK AND CLIMBING UNROPED—Ontario, Milton, Rattlesnake Point. Mark Johnson (18) had climbed with a school group on May 2, 1976, on a part of the cliff with a steep, sloping top covered with leaves and branches, and without a clearly defined trail. While he was unroped near the edge, he tripped and fell 80 feet to the ground. He was dead on arrival at Milton Hospital. (Source: Peter Turner.)

Analysis. Beginners, particularly, should be moved well away from the top of the cliff before being unroped, particularly if the ground slopes steeply. (Source: Peter Turner.)