Hi m/hiker: Lost in the woods? No problem. Pull out your compass and go south. You forget your compass you say? No problem. Ask the Boy Scout you brought you. You didn't bring a Boy Scout you say? No problem. Find a tree; they have trees in the forest. Circle the tree. You'll see green moss. Green moss grows on the north side of the tree. Semi-circle the tree and you'll head south. South is down. And home.