This data set was acquired with Kongsberg Maritime EM122 Multibeam Sonar aboard the RV ARAON during two mapping programs conducted from 2013-02-11 to 2013-01-12 and 2015-01-12 to 2015-02-10 (Chief Scientist: Dr. Jae Il Lee, Investigator: Dr. Jae Il Lee). These processed data files are of Text File (ASCII) format and include Swath Bathymetry.