Source: This article was adapted from The
Essential Technical Rescue Field Operations Guide, 4th Edition, by Tom
Pendley of Desert Rescue Research in Glendale, Arizona. Copyright © 2011.All
Rights Reserved. Excerpted with Expressed Written Permission. To purchase a
copy of this handy, 196-page, spiral-bound, pocket-sized field guide, point
your Internet browser to www.DesertRescue.com or call 1.877.434.4781.
