Hazard evaluation and procedures for working in inactive mines, draft

the long version

"To work in inactive mines with acceptable safety you must (1) recognize the hazards involved, (2) evaluate those hazards, and (3) know the techniques for avoiding those hazards or coping with them. This paper is intended to allow personnel of the Bureau of Mines, Bureau of Land Management, and U.S. Forest Service...to accomplish their job as well and as safely as is possible...Hazards to be aware of when entering inactive mines are: improper attitudes, animals, rock falls, explosives, falls, falling objects, gases, oxygen deficiency, radiation, water, and getting lost"--Pages 2-3.