Geocaching Since 2000 Geocoin

On May 3, one such enthusiast, Dave Ulmer, a computer consultant, wanted to test the accuracy by hiding a navigational target in the woods. He called the idea the “Great American GPS Stash Hunt” and posted it in an internet GPS users’ group. The idea was simple: Hide a container out in the woods and note the coordinates with a GPS unit.

The finder would then have to locate the container with only the use of their GPS receiver. The rules for the finder were simple: “Take some stuff, leave some stuff.”

On May 3rd he placed his own container, a black bucket, in the woods near Beavercreek, Oregon, near Portland. Along with a logbook and pencil, he left various prize items including videos, books, software, and a slingshot. He shared the waypoint of his “stash” with the online community on sci.geo.satellite-nav:

N 45° 17.460 W 122° 24.800

Within three days, two different readers read about his stash on the Internet, used their own GPS receivers to find the container, and shared their experiences online. Throughout the next week, others excited by the prospect of hiding and finding stashes began hiding their own containers and posting coordinates. Like many new and innovative ideas on the Internet, the concept spread quickly – but this one required leaving your computer to participate.

Within the first month, Mike Teague, the first person to find Ulmer’s stash, began gathering the online posts of coordinates around the world and documenting them on his personal home page. The “GPS Stash Hunt” mailing list was created to discuss the emerging activity. Names were even tossed about to replace the name “stash” due to the negative connotations of that name. One such name was “geocaching.”

Geocaching, first coined by Matt Stum on the “GPS Stash Hunt” mailing list on May 30, 2000, was the joining of two familiar words. The prefix geo, for Earth, was used to describe the global nature of the activity, but also for its use in familiar topics in gps such as geography.

Caching, from the word cache, has two different meanings, which makes it very appropriate for the activity. A french word invented in 1797, the original definition referred to a hiding place someone would use to temporarily store items. The word cache stirs up visions of pioneers, gold miners, and even pirates. Today the word is still even used in the news to describe hidden weapons locations.

The second use of cache has more recently been used in technology. Memory cache is computer storage that is used to quickly retrieve frequently used information. Your web browser, for example, stores images on disk so you don’t have to retrieve the same image every time you visit similar pages.

The combination of Earth, hiding, and technology made geocaching an excellent term for the activity. However the “GPS Stash Hunt” was the original and most widely used term until Mike Teague passed the torch to Jeremy Irish in September 2000.