More of this Feature • Location, Location • What to Take Along • Which 4x4 to Drive • Insider Secrets

Join the Discussion "...I have been letterboxing for just over a year. ... I believe geocaching came out of 'boxing' with the advent of G.P.S. There are some  'boxes that are dual in that they are a geocache and a letterbox all rolled into one." TOMCRO

Related Resources • GPS & Navigational Aids • Fun Stuff • CB's & Radios

From Other Guides • Letterboxing Attracts Walkers

Elsewhere on the Web • Locate A Cache • Geocaching In The News • How To Hide A Cache • Geocaching Accessories • For The GeoPet

Caches are located in cities all across the United States (and beyond!), both above and below ground, inside and outside buildings. At the time of this writing, there were 20,430 active caches in 126 countries!

Finding the location of a cache can be extremely entertaining, as well as challenging... For both the hider and the seeker. For example, some caches are placed in areas accessible only by those with specific equipment on hand -- like on the side of a rocky cliff (accessible by those with rock climbing equipment) or under water (accessible by those with scuba equipment).

Some caches are barely off the beaten path, making them easy to find by GPS coordinates alone. Other caches require traversing miles of rough terrain (best done in a 4x4) or some long and difficult hiking (best tackled by those with adequate hiking and survival gear).

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