Almirantazgo Fjord, Cape Horn Biosphere Reserve

Almirantazgo Fjord, also known as Almirantazgo Sound or Admiralty Sound, is a Chilean fjord located in the far south of the country at 54°19′S 69°30′W. The fjord cuts deeply into the west coast of the Isla Grande de Tierra del Fuego, extending southeastwards from the Whiteside Channel, which separates Isla Grande from Dawson Island. On its south side several smaller fjords and bays make significant indentations into the north coastline of the Cordillera Darwin. One of these, Ainsworth Bay, is home to a colony of elephant seals. Azopardo River empties into the head of the fjord. ()