On March 9, 2013 there will be a Masonic Geocaching event at the House of the Temple in Washington, D.C.
From a facebook post:
ATTENTION ALL GEOCACHERS!
Join us on Saturday, March 9, 2013
10:00 a.m. to 1:00 p.m.
This is a great opportunity for geocachers from all over to join us in Washington, D.C. to share and exchange ideas, and talk about caching. The event will take place in the rear of the building.
We hope everyone will be able to join us for this special Geocaching event in Washington, DC on March 9, 2013. We are honored to have Arturo de Hoyos, Grand Archivist and Grand Historian of Scottish Rite Freemasonry, as the feature speaker for the event!