No injured cavers recorded.
At a 25 foot pit the rope was rigged to a pillar of limestone about ten inches square and twenty inches high, three feet off the floor. The first caver to descend pulled on the rope, tied to this, with all his weight. It seemed secure. When he rigged in for rappel and leaned back over the edge of the drop, he paused and still it looked OK. When he took a step downward, the top of the pillar began to tip, a companion yelled 'Stop!'; and the rigging point fell apart. The rappeller reacted instantly, throwing out his arms and catching himself at the edge on his elbows. He scrambled to safety.
Caver nearly falls when limestone pillar used as a rigging point collapses, but avoids injury by catching himself on the edge.