Natural Navigator Pocket Guide

"Before GPS, before the compass, and even before cartography, humankind was navigating. A windswept tree, the depth of a puddle, or a trill of a birdsong could point the way home--and for the alert traveler, they still can. Whether you go exploring in the mountains or on a lunch break, natural navigation will keep you on course and open your eyes to the small wonders of the natural world. Almost anything in our environment can help us find our way--if we know what to look for..."--P. [4] of cover.