Perspective view of the sea floor of the Atlantic Ocean and the Caribbean Sea, looking west. The Lesser Antilles are on the lower left side of the view and Florida is on the upper right. The purple sea floor at the center of the view is the <a href="https://en.wikipedia.org/wiki/en:Puerto_Rico_trench" class="extiw" title="w:en:Puerto Rico trench">Puerto Rico trench</a>, the deepest part of the Atlantic Ocean and the Caribbean Sea.
USGS
<p><a rel="nofollow" class="external text" href="https://pubs.usgs.gov/of/2004/1400/">Project PROBE Leg II - Final Report and Archive of Swath Bathymetric Sonar, CTD/XBT and GPS Navigation Data Collected During USGS Cruise 03008 (NOAA Cruise RB0303) Puerto Rico Trench 18 February - 7 March, 2003</a>. USGS Open-File Report 2004-1400. 2005.
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Originally from <a class="external text" href="https://en.wikipedia.org">en.wikipedia</a>; description page is/was <a class="external text" href="https://en.wikipedia.org/w/index.php?title=Image%3AAtlantic-trench.JPG">here</a>.