This data set was acquired with a ship-based Atlas Hydrosweep DS Multibeam Sonar system during Maurice Ewing expedition EW9201 conducted in 1992 (Chief Scientist: Dr. Steve Cande; Investigator(s): Dr. William Haxby). These data files are of MBSystem Compatible format and include Acoustic Backscatter and Swath Bathymetry data that have not been processed. Data were acquired as part of the project(s): A High Resolution Plate Kinematic Flowline of the Pacific-Antarctic Ridge, and funding was provided by NSF grant(s): OCE91-03573.