TheTryne Islands are a group of numerous smallAntarctic islands and rocks, about 7 km (4 mi) in extent, forming the western limit ofTryne Bay andTryne Sound at the north-eastern end of theVestfold Hills. The islands were mapped by Norwegian cartographers from aerial photographs taken by theLars Christensen Expedition (1936–37) and named Trynøyane ("snout islands").
Mikkelsen Cairn: A rockcairn and a wooden mast were erected on 20 February 1935 by a landing party led by Captain Klarius Mikkelsen of the Norwegianwhaling shipThorshavn. A member of the party was Mikkelsen's wifeCaroline, the first woman to set foot onEast Antarctica. The cairn was discovered byAustralian National Antarctic Research Expedition field parties in 1957, 1977 and again in 1995. The site has been designated aHistoric Site or Monument (HSM 72), following a proposal by Australia and Norway to theAntarctic Treaty Consultative Meeting.[1]
A 40 ha site, comprising a small unnamed ice-free island in the north of the group, has been designated anImportant Bird Area (IBA) byBirdLife International because it supports a breeding colony of about 13,000 pairs ofAdélie penguins, estimated from 2011 satellite imagery.[2]
68°22′26″S78°24′57″E / 68.37389°S 78.41583°E /-68.37389; 78.41583
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