On Saturday, July 31, a group of five cavers was exploring in Porters Cave in Bath County, Virginia. They reached a point about 8,000 feet from the entrance. At about 1:30 p.m., one of the group, Bryan Devary, was sitting on a rock ledge, waiting to descend a mud slope, when the ledge collapsed. He fell about 20 feet, landing on his back and suffering arm and leg injuries. He was pinned by the boulders which fell with him.
His companions tried to free him but could not. A rescue was initiated and the victim was freed from the rocks and evacuated from the cave by 6:30 a.m. Sunday. A particular problem was the Keyhole, a 75-foot length of 2- by 6- foot passage. A total of 134 rescuers were involved
NSS News, December 1994 (Part 2) V52N12, Page 395.
George Dasher "The Summers Cave Rescues" The West Virginia Caver Oct 1993, p 15.
No analysis has been done.