Image: Dakster Sullivan

Geocaching at 15

On May 3, Geocaching turned 15. According to Geocaching.com, just one day after commercial GPS receivers could receive accurate signals for the first time in 2000, GPS enthusiast Dave Ulmer hid a small treasure in the woods, published the coordinates, and announced the “Great American GPS Stash Hunt.” Thus was born a simple but addictive hobby that anyone with a GPS can play all over the world.

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