I just discovered that US topo maps are available for free. Maybe it's common knowledge, but I didn't know. They're free to download, and copyright free, so you can copy them too. I think you can use them with GPS's too. The newest editions are digital, so you can remove extra details that you may not need, which helps with viewing. The older editions are worth taking a lot at too because many of the trails that are on them are not on the newest editions. Staples will make B/W 20x30" copies for $2.40. The link is in my sig-line.