Milwaukee Deep

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Milwaukee Deep, also known as the Milwaukee Depth, is the deepest part of the Puerto Rico Trench, constituting the deepest points in the Atlantic Ocean. Together with the surrounding seabed area, known as Brownson Deep, the Milwaukee Deep forms an elongated depression that constitutes the floor of the trench. As there is no geomorphological distinction between the two, it has been proposed that the use of both names to refer to distinct areas should be reviewed. During the Five Deeps Expedition, explorer Victor Vescovo achieved the first crewed descent to the location on 21 December 2018. Media outlets overwhelmingly referred to the area as the Brownson Deep, while the name Milwaukee Deep was used by others. However, likely due to the factors mentioned above, the expedition has not used any particular name to refer to the site of their Atlantic dive. It is named for the USS Milwaukee, which recorded the first echo soundings of the Puerto Rico Trench in 1939, and was itself named for the...

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