Region 12 Convention–Trek Expo 2011 May 29, 2019 cheng Calendar Add to Calendar Add to Timely Calendar Add to Google Add to Outlook Add to Apple Calendar Add to other calendar Export to XML To navigate, press the arrow keys.This page can't load Google Maps correctly.Do you own this website?OK When: June 24, 2011 – June 26, 2011 all-day 2011-06-24T00:00:00-05:00 2011-06-27T00:00:00-05:00 Where: Tulsa OK For more information: trekexpo.net