There is a hi-tech type of treasure hunting happening, maybe under your very nose. If you don’t already know about it, it’s called Geocaching!
The hobby (or obsession) of geocaching began in 2000 when military satellite signals were unscrambled, allowing GPSr (Global Positioning Satellite receivers) to accurately pinpoint locations around the world. Someone in Oregon decided to hide a container with a prize in it, post the position on the internet and see if anyone would find it. Now there are over 500,000 caches hidden world-wide and thousands of treasure hunters searching for them.
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