Mt. Rainier, WA – Visit Rainier continues to celebrate the Centennial of the National Park Service by releasing the fourth and final series of its Centennial GeoTour on September 16.  The organization has partnered with Mt. Rainier National Park and Washington State Geocaching Association to create a 100-cache educational GeoTour.

Over 2015-2106, 100 new geocaches are being placed around Mt. Rainier National Park and its gateway communities to celebrate the Centennial of the National Park Service in 2016.

Geocaching is a real-world, outdoor treasure hunt using GPS-enabled devices. Participants navigate to a specific set of GPS coordinates and then attempt to find the geocache (container) hidden at that location.

Caches on the Visit Rainier Centennial GeoTour are being released in four separate series, 25 at a time. The first release was June 13, 2015.  The second series launched October 9, 2015.  Series 3 was released July 1, 2016.  The fourth and final series is launching September 16, 2016.

The Rainier Centennial GeoTour page on lists all the geocaches. Each cache contains a code word that participants record in a passport (downloadable on along with the challenge rules). When a passport contains all 25 code words, participants can turn it in for a trackable pathtag. A new pathtag will be available for each series. If a player logs all 100 caches, they can receive a commemorative geocoin.

For more information on the fourth and final series launch of the Visit Rainier Centennial GeoTour, check out or

To download the Visit Rainier GeoTour Guidelines click here: VRGT-Guidelines-2