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Article describing the basics and the factors that motivate people to start letterboxing.
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Artist from Salem, Massachusetts describes her boxes.
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Trip planning portal offers clue search by country as well as tutorials and premium members services.
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Introduction, photographs of personal stamps, and clues for boxes planted in southwest British Columbia.
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Clues for boxes she planted in Washington and Massachusetts.
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Offering clues for letterboxes in the Syracuse, New York area.
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Search for boxes in Long Beach, San Bernardino and Lake Arrowhead, California.
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Chuck and Molly's letterboxes in Connecticut.
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Introduction, tips and things to avoid, news, survey, and letterbox clues for the Dartmoor area.
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Includes a forum, image gallery, map of the area, contact details, and the history of the activity.
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Rubber stamp carver Mitch offers instructions on how to carve a stamp, and some examples.
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Clues for boxes in Dartmoor and in the Netherlands. [English and Dutch]
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Posts first finds submitted by new US letterboxers, organized by state.
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Virtual letterbox clues lead visitors on an online hunt.
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Weblog about his letterboxing hobby.
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Feature story datelined Oakland, New Jersey.
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Clues to letterboxes he has placed, mostly in the Northwest US.
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Introduction, contact details, and guidelines for letterboxing in the Dartmoor area.
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Account first published as "More Dartmoor Letterboxes" by Anne Swinscow in 1986.
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Clues to quick and easy letterboxes to find while traveling on Route I-95, from Maine to Florida.
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Clues for letterboxes located in Kansas.
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Forum with clues and discussion topics. Includes helpful hints on methods and supplies.
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Clues for Germany and other European countries. Includes photos and tips. [English, German]
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Explanation of this hobby, clues to locate letterboxes in Minnesota, how to make a letterbox.
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US-based portal offering FAQ, links, forums, and a members-only section where clues can be submitted.
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Links to dozens of forums and clue sites.
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The Drew family of East Lyme, Connecticut, offer clues in New England states as well as Washington, DC, South Carolina, and Colorado.
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British university student studying letterboxing for her dissertation asks visitors to answer a few questions on the activity.
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Couple from Kensington, Connecticut describe activities in eleven states and the island of Aruba.
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Bonnie and Betsey Sennott offer clues to their boxes in Massachusetts.
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Anna and Paul offer clues to boxes in Connecticut, Massachusetts and Vermont.
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Radio host Linda Wertheimer and Thomas Johnston, an enthusiast in Washington, D.C., find a letterbox near the White House. [audio]
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Ambitious family project placing letterboxes in each state, patterned after the US quarters series.
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Mark and Sue's weblog of letterboxing events in New England.
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Clues, views, and news including boxes from Team Psychokiwi, Judi, Linton, and the Bunny.
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Clues to boxes in Oklahoma City as well as New Mexico, Alabama, and Costa Rica.
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Family and friends offer clues to letterboxes in New Jersey and Pennsylvania.
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Personal page with clues for boxes placed throughout the western United States, as well as a few in Canada, Africa, and Central America. Also includes tips for improving the stamp quality.
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Articles including getting started, outdoor ethics, and explanation of cryptic letterboxer codes. Also includes list of boxes found and clues for boxes placed in the northeastern region of the United States.
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Clues to nearly 100 letterboxes that Silver Eagle has placed in North America, primarily in Texas.
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A collection of information and clues relating to letterboxing, a hobby that combines hiking, art, orienteering and mystery in a treasure-hunt style activity.
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Article on local letterboxing from chain of community newspapers near Washington, DC.
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Family offers clues for Pennsylvania, New York and other states.
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Clues to letterboxes placed by twograysquirrels, mostly in Maryland and Virginia.
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Database of clues to letterboxes in urban locations, primarily in Europe.
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Clues for boxes placed primarily in Rhode Island, but a few in other states as well. Also includes logs of the movement of hitchhiker boxes, primarily in New England.
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Article by Caroline Kettlewell describes her discovery of the activity.
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Michelle Spalding offers a history of letterboxing in England and the United States with bibliography.
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Discussion group for the northeastern US.
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Discussion group for US letterboxers.
