A single salt dome off Southwest Pass of the Mississippi River discovered by
the Coast and Geodetic Survey, contoured by Francis Shepard.
GSA Bulletin; September 1937; v. 48; no. 9; p. 1349-1361.
Image ID: map00106, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collection
• High Resolution Photo Available
of the U.S. Department of Commerce, National Oceanic & Atmospheric
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April 30, 2013