Before you set out on a trip it's best practice to read the map for the area and identify some natural or man-made features that bound the area you're going in.

Before you set out on a trip it's best practice to read the map for the area and identify some natural or man-made features that bound the area you're going in. Then if you're lost you can use your compass to navigate to one off these "hand rails" and from there you know that you're somewhere on that line.