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. The Big Brother Letterbox San Miguel, CA
2. Love Birds San Marcos, CA
3. Brian Griffin Los Angeles, CA
4. Elana Chivani - XV The Devil ???, TX (4)
5. Pineapple Place - Little Free Library North Port, FL
6. Wisconsin's 250 Years of History: Mukwonago Mukwonago, WI
7. Troop 160 Brownie's Adventure Raleigh, NC
8. Easter Butterfly Los Angeles, CA
9. Elana Chivani - XX Judgement ???, MO (3)
10. Stream to the sky Pinehurst, NC
11. Intrinsically Yours Modesto, CA
12. Box #6 and #7 at LBJ grasslands Decatur, TX

More new letterboxes

1. Steering Horns Groesbeck, TX
2. Chimp Kosse, TX
3. Head on Door Marlin, TX
4. Felix is Wonderful ???, MA
5. Egret box at Shipyard Farm Fairhaven, MA
6. Morgan Massacre Rocky Hill, TX
7. Bear Shooting Mistake Chilton, TX
8. Artistic Nature Jamaica Plain, MA
9. A Glorious Day! West Roxbury, MA
10. R.O.V. # 4 East Haddam, CT
11. Duthie Woods Monson, MA
12. Johnny Depp Series Los Angeles, CA (1/2)

The search results were tweaked 7-Aug-15 to show the last status on the search results. This is a little controversial, but my sense is that there are more people that want to know this than not.