Yenra : GPS : GPS Navigation Guide : GPS topography adventure book.

GPS Navigation Guide

GPS Navigation Guide

Your complete resource for outback navigation. Learn how to use your GPS with map, compass, computer, PDA and radio tracking. A fun, non-technical way to learn naviagation skills inspired by outdoor adventure ranging from Geocaching, search and rescue and off-road racing. Includes 142 photos and graphics and a special wrap around cover spiral spine. Also includes a Topo Companion map ruler. By Jack W. Peters from Eugene, Oregon. Jack is a longtime enthusiast for outdoor adventure ranging from desert racing, search and rescue, exploring and gold mining.