Final answer:
The 'The Original Stash Tribute Plaque' is located in Oregon, marking the site where geocaching was invented in 2000. It commemorates the placement of the first geocache by Dave Ulmer that spurred a global outdoor treasure-hunting activity involving GPS technology.
Step-by-step explanation:
The question asked is referring to the invention of an outdoor activity that began in the year 2000, whose birthplace is commemorated with 'The Original Stash Tribute Plaque'. This plaque is located at the site where geocaching, a popular outdoor recreational activity, was invented.
Geocaching is an adventure game for GPS users participating in a high-tech treasure hunt of sorts. Participants use location coordinates to hide and seek containers called 'geocaches' or 'caches', often containing a logbook and sometimes trinkets or toys. It has become a global phenomenon since its inception, with millions of geocaches hidden worldwide.
The 'The Original Stash Tribute Plaque' is located in Oregon, USA, and marks the spot where the very first geocache was placed by Dave Ulmer on May 3, 2000.
This inaugural cache marked the start of what would become a burgeoning worldwide hobby, combining technology, nature, and adventure. The activity encourages physical activity, navigation skills, and a sense of community among enthusiasts.