Argentina

Argentina (アルゼンチン), officially the Argentine Republic, is the country located in southern half of South America. Argentina shares borders with five countries; Chile to the west, Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay to the east.

Background
The Human Sports Analysis (人体スポーツ解析センター) is located in Deseado, Argentina.

Toaru Majutsu no Index Light Novel Volume SS2
On the Second Friday of October, Misaka 15110 was one of the Sisters sent to Gemstone Mining research organizations around the world. She was sent to Deseado, Argentina, at the Human Sports Analysis Center, to destroy the facilities and rescue the gemstone there. During her periodic progress report, she had just finished taking control of the secure electronic lock to to the secret area of the facility.