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. Mill Creek #2 Quincy, IL
2. Quincy Water Tower Quincy, IL
3. Blessing Hospital Quincy, IL
4. Hello There Baldwinsville, NY
5. Wisconsin's 250 Years of History: Delavan Founders Delavan, WI
6. What a view! Lucky You Phoenix, AZ
7. TALE 23 - BYOB - Cocktails Concan, TX
8. Ole Millstone Oakdale, CA
9. TX Libations Series Concan, TX
10. Wisconsin's 250 Years of History: Walworth County ???, WI
11. Wisconsin's 250 Years of History: Sweet By-and-By Elkhorn, WI
12. Kepler Kea Te Anau, Southland, New Zealand, INT

More new letterboxes

1. Westchester Woods: Letterbox F New Rochelle, NY
2. Argus's Letterbox Larchmont, NY
3. Celebrating 20 Years of Boxing on Max Patch! Hot Springs, NC (1/9)
4. Founder Of Wimberley Wimberley, TX
5. Wisconsin's 250 Years of History: Sweet By-and-By Elkhorn, WI
6. Wisconsin's 250 Years of History: Eagle Eagle, WI
7. Hole in One Renegade Concan, TX
8. Recollections of Spain ORO VALLEY, AZ (4/4)
9. Ambigrams: Knowledge Andora, MD
10. Concord Point Lighthouse Havre de Grace, MD
11. Havre de Grace Maritime Museum Havre de Grace, MD, MD
12. Wisconsin's 250 Years of History: Walworth County ???, WI

Once you’ve found a letterbox, please make sure to seal it back up so that it‘s watertight, then re-hide it so that it is completely hidden from view. I try to sprinkle a few leaves over the hiding spot to make it looks as natural as possible.