Use {{location|CL}} to tag expeditions that took place in Chile. It will add Category:Meetup in Chile to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the region 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 Región del Maule is a subcategory of Category:Meetup in Chile. The subcategories should be sorted in by their respective code.
Examples
{{location|CL}}: Chile{{location|CL|ML}}: Región del Maule
