I picked up a book recently on Orienteering. "Be Expert With Map and Compass" Before I read it I knew how to use a compass and a topo map. But it showed me a lot of interesting ways to do things I'd never thought of on my own and Uncle Sam didn't bother teaching me. I knew about declination but largely dismissed it. It showed me I was a fool if I ever went more than 300 yards to find something.

Makes me want to take up a new hobby. Hiking. Any of you hike regularly?