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Level 4, 66 Wyndham Street
Auckland, New Zealand
Level 4, 66 Wyndham Street
Auckland, New Zealand
At the northwestern end of Amundsen Gulf and the Northwest Passage, the Amundsen Trough is a submarine glacial trough leading into the Beaufort Sea. South of Banks Island and its Migratory Bird Sanctuary, northeast of the Anderson River Delta Bird Sanctuary, and north of Tuktut Nogait National Park, all within the Northwest Territories, the submarine feature and gulf are named after Roald Amundsen. Plough marks of iceberg keels with a width of up to 150 meters and a depth of up to 10 meters have been identified on the sea floor. Seismic research in 2014 has shown that at least nine Quaternary ice streams advanced through the Amundsen Trough, implying it was a major route for ice and sediment towards the Arctic Ocean.