xxxiii
Miller, Daryl; Chief Climbing Ranger, Denali National Park in report to Accidents in North
American Mountaineering
xxxiv
Farabee, C.R. "Butch" (1997); Death, Daring, and Disaster; Boulder, Colorado: Roberts
Rinehart Publishers (p. 437)
xxxv
Osius, Alison (1991); Second Ascent, The Story of Hugh Herr; Harrisburg, PA; Stackpole
Books
xxxvi
Joe Gill, Snow Ranger, Appalachian Mountain Club as published in The American Alpine
Club's Accidents in North American Mountaineering
xxxvii
Williamson, John Edward (Jed), Editor; Accidents in North American Mountaineering; New
York New York; The American Alpine Club
xxxviii
Report by subject Allan Errington; Seattle Mountain Rescue
xxxix
Jim Webster, Arches National Park; Accident Analysis