Letterboxing is an intriguing “treasure hunt” style outdoor activity. Letterboxers hide small, weatherproof boxes in publicly-accessible places (like parks) and post clues to finding the box online on one of several Web sites. However, clues to finding some of the most highly-sought boxes are passed around by word of mouth.

There are about 60,000 active letterboxes listed on LbNA alone. Individual letterboxes usually contain a log book, an often hand-carved rubber stamp and occasionally contain an ink pad. Finders make an imprint of the letterbox’s stamp on their personal log book, and leave an imprint of their personal stamp on the letterbox’s logbook.

1. Block Blast Busby, VI
2. Babe the Blue Ox's Letterbox Ossineke, MI
3. My Sweet Maw Maw Woden, TX
4. Panda Inn 1973 Pasadena, CA
5. Left Behind Incheon, South Korea, INT
6. Left Behind Incheon, South Korea, INT
7. Desert Dandelion California City, CA
8. Yin & Yang Omaha, NE
9. Scratch Games Alisonhaven, IA
10. Retro Bowl Mountain View, FL
11. Quordle New York, NY
12. Fun at the park Goffstown, NH

More new letterboxes

1. Balloon Tragedy Maxwell, TX
2. Bethel Church McMahan, TX
3. Seawillow Story Seawillow, TX
4. Lost Dog-Long Haired Chihuahua Freeport, ME
5. Coffee-noun, break fluid Shelburne Falls, MA
6. Resting Places XVI: St. John's Cemetery Middletown Middletown, CT
7. Earle H. Remick Nature Trail Tamworth, NH
8. Jacob and Ester Middletown, CT
9. Foraging Sassafras Norwich, CT
10. Cemetery Flower #8 Bartlett, NH
11. My 1st Computer New Hartford, CT
12. Leaf it to Nature Oostburg, WI (2/2)

When searching by location, you can use GPS coordinates if you use the latitude and longitude numbers as degrees (not degrees and minutes). For example: 42.6822, -71.1393 or 42 6822 -71 1393