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.
