Soft Plume River crossing at coast. Code: MSOFTC. Height: 27m. Descriptions and derivations of South African-named geographical features at the Prince Edward Islands with GPS coordinates and photographic records needed to be preserved. John Cooper as part of the Antarctic Legacy Project has compiled the list for Prince Edward Island and Marion Island that includes coordinates of geographical features, height and geographical code. Images supplied by Johan van der Vyver, Sealer Marion70. In the photo is Christiaan Brink, Sealer Marion 70.