Ted,as you are in a search and rescue unit, I would have the ground to air code( l= serious injury, F= need food/water etc.), body signal codes ,Basic knots,water purification instructions for whatever product you carry, the signal of three universal distress symbol, the local constellations(by season) in your local nightsky and indicated direction, Basic first aid for hyper and hypo thermia. This is hardly complete. I try to think what I may forget,or worse mixup when fatiqued or injured, and what a complete novice would need to know. The SAS Gem and Flickbook are still the best. If I can carry a pocket kit,these small tomes are not that much more.<br><br>