@dfanonymous to clarify my statement from my first post, terrain associate to get you to an area. Like you said back to the truck in the gravel parking lot. For pin point accuracy you're going to need a map, compass, and protractor (and super fine tip marker!). My longest movement using this method was 3 miles. I agree, no idea how I would do really long movements with this method. I think using a map and compass can get me into an area relatively well. I need to talk to my buddy on what he does without a GPS. He's done several challenging land nav courses without GPS.