Idaho, Local Cliff near Idaho Falls—On May 7, 1954, Dale Harker (14) was climbing down a cliff using a fixed rope when some rocks gave way beneath his feet. He was unable to hang onto the rope and fell about 30 feet to the base of the cliff. He broke his right arm and received severe lacerations on his scalp and right leg. A companion had previously made a successful descent.

Source: Newspaper report.

Analysis: Apparently improper rappel technique was used.