The island is administratively part of the Argentinian province of
Tierra del Fuego
, and of the department and city of
. It has been declared an "Ecological, Historic, and Tourist Provincial Reserve" ("
Reserva provincial ecológica, histórica y turística
"), with access limited to tours from Ushuaia. The only settlement is the Puerto Parry Naval Station, located in a deep and narrow fjord on the northern coast of the island. The naval station, created in 1978, is manned by a team of four marines on a 45-day rotation, in charge of monitoring environmental conservation, ship movement, and also to provide emergency assistance.