The Letterboxing Underground













We are the LetterBoxing UnderGround, the most subversive, mysterious, and cryptic faction of the letterboxing world.



This area has been deemed off-limits to young children, as well as park, forest, and law enforcement officials; nor, is it recommended for exclusive sympathizers of any one particular letterboxing web site or community.

Be warned: immaturity and insolence will not be tolerated in the UnderGround. Honor, mutual respect, and confidentiality are critical to the survival of our letterboxes and our organization!


Please do not publicize the LetterBoxing UnderGround,
or publish its URL on any other Web site or directory!