| Name | Age | Sex | Injuries | Injured areas |
|---|---|---|---|---|
| Johnsson, Mark | Not recorded | Not recorded | Not recorded | Not recorded |
| Maurice, Pat | Not recorded | Not recorded | Not recorded | Not recorded |
On March 26, 1982 Mark Johnsson and Pat Maurice entered Haynes Cave in Monroe County, West Virginia. On the previous day they had finished a survey of the cave and had returned to obtain geological data. After six hours in the cave they were on the 'lower level' about 50 feet south of the entrance. Johnsson proceeded up an easy ten foot climb, which he had done twice before. At the top the 'ceiling and/ or wall failed.' One large block shifted, temporarily pinning Johnsson's chest against the top of the climb. A second block (3x2x1 foot) bounded down the drop striking Maurice, who was ten feet laterally from the bottom. The rock hit her on the right side, knocking her to the ground and causing cuts and contusions. Johnsson freed himself and the two left the cave under their own power. A hospital examination revealed no broken bones or major injuries.
Johnsson relates that this is the second such incident in Haynes Cave-in '77 a rock fell breaking the toe of a caver. He points out that the gypsum in the cave is constantly forming in joints, exerting pressure and causing blocks to loosen. This is true of any gypsum area in any cave.
Rockfall in Haynes Cave resulted in non-fatal injuries to cavers Mark Johnsson and Pat Maurice.