Use {{location|BG}} to tag expeditions that took place in Bulgaria. It will add Category:Meetup in Bulgaria to the expedition.
Using ISO 3166-2 or license plate abbreviations, you may also tag the oblast that the expedition took place in.
If the category link appears red, do not worry and create the category. Make sure that it is included in the appropriate parent category, for instance, Category:Meetup in Sofia is a subcategory of Category:Meetup in Bulgaria. The subcategories should be sorted in by their respective code.
Examples
{{location|BG}}: Bulgaria{{location|BG|22}}: Sofia{{location|BG|C}}: Sofia{{location|BG|01}}: Oblast Blagoevgrad
