| About Letterboxing: A short history of letterboxing in Dartmoor and North America. | |
| Dutch Letterbox Site: Provides information on getting started, codes of conduct, prehistoric Dartmoor and the 100 club. | |
| Have Feet Will Travel: An introduction and guidelines to finding letterboxes on Dartmoor. Includes details of National Park by-laws and contact details for checking military activity. | |
| Letterboxing Info Sheet: An explanation of the hobby for printing out and including in your own letterboxes. | |
| Letterboxing Kids: Includes a map-reading game, photo album, story and instructions for making rubber stamps. |
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