Use {{location|CR}} to tag expeditions that took place in Costa Rica. It will add Category:Expeditions in Costa Rica to the expedition.
Using ISO 3166-2 abbreviations, you may also tag the province 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:Expeditions in Provincia de Guanacaste is a subcategory of Category:Expeditions in Costa Rica. The subcategories should be sorted in by their respective code.
Examples
{{location|CR}}: Costa Rica{{location|CR|G}}: Provincia de Guanacaste{{location|CR|SJ}}: Provincia de San José
