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. Flip Flop Fun! Cambria, CA
2. IT: Horror Classics Series- 1 of 6 Brookfield, VT
3. Pack 74- Mt. Misery Voluntown, CT
4. Famous Ed's Liquor El Monte, CA
5. Carollyn's Brownie letterbox Colorado springs, CO
6. Heather's 10th birthday box Colorado springs, CO
7. Country View Park Lincoln, NE
8. Girl Scout Love Webster, NY (2)
9. Rainbows (2) Bath, NY (2)
10. Dino Day Lunenburg, MA
11. Girl Scout Troop 248 Box 1 Albany, MN
12. The Daisy Letterbox Las Vegas, NV

More new letterboxes

1. Dick's Quarry Lone Pine, CA
2. Rattlesnake Dick Lone Pine, CA
3. Stone Mountain Squeeeezebox Stone Mountain, GA
4. Dulcimer Festival Palestine, TX
5. 40 Minute President Palestine, TX
6. IMAGINE (2 stamps!) Mansfield, MA
7. Lock 7 Niskayuna, NY
8. Visit Me in Rochester Barre, VT
9. Famous Ed's Liquor El Monte, CA
10. Love Those Movies: Halloween South Pasadena, CA
11. Lock the Cheese Berlin/Southington, CT
12. Leaning Tower ll Berlin/Southington, CT

Did you know that it’s really easy to embed a video in an LbNA clue? Simply create your video and upload it to youtube. Once it’s there, click on Share then Embed, copy the code that it provides, and then paste that into the letterbox clue area on LbNA. Done!