Letterboxing was started by James Perrott of Chagford in 1854 when he set the first Letterbox at Cranmere Pool, Dartmoor. The Letterbox consisted of a glass jar where visitors left visiting cards from this it developed to visitors leaving letters or postcards along the trail and this is where the name “Letterboxing” originates from. The next visitor would then post the letters and postcards they found. The aim of Letterboxing combines treasure hunting and puzzle solving whilst developing navigational skills. Geocaching is loosely based on this but uses satellites and GPS (Global Positioning Systems) receivers and maps to find the hidden caches.
This category has two geocoins:
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REFERENCES
Letterboxing & geocaching on the Dartmoor National Park Website