As letterboxing's popularity has grown, so has its jargon. Here are a few key letterboxing terms to help you get started.
Bonus Box: A letterbox whose clues are discovered inside another letterbox.
Geocaching: High-tech letterboxing in which handheld GPS units are used to locate hidden boxes. As with letterboxing, the clues (the coordinates) to the boxes are exchanged online.
Hitchhiker: A surprise, transient letterbox that's found inside a stationary letterbox; upon discovering it, a letterboxer moves it to another box.
Microbox: A miniature letterbox sometimes in a container as small as a film canister.
Stamp in: To make an impression of your personal stamp in a letterbox's log and record an image of the box's stamp in your own log.
Trail name: The alias used by a letterboxer when stamping in.
