Río Grande is a city in Argentina, on the north coast of the eastern part of the Isla Grande de Tierra del Fuego. It has a population of 67,038, and is the industrial capital of the Tierra del Fuego Province. It is located 212 kilometres north-east of Ushuaia, the capital of the province.
It is served by Hermes Quijada International Airport.
Wikipedia https://en.wikipedia.org/wiki/Río_Grande,_Tierra_del_Fuego
Coordinates -53°47'8.436" N -67°42'5.893" E