Prepared and published by the National Imagery and Mapping Agency. Depths shown by isolines and soundings. Relief shown by hachures and spot heights. "From various sources to 1991." "Copyright 1997 by the United States Government. No copyright claimed under Title 17 U.S.C." "Soundings in meters." "Sheet no. 29005." This map is part of a collection of scanned and georeferenced nautical charts produced by the National Geospatial-Intelligence Agency (NGA). United States. National Imagery and Mapping Agency. (1997). Antarctica, Marie Byrd and Ellsworth lands, Cape Herlacher to (west coast) Matha Strait (Raster Image). LandInfo. Available at: https://purl.stanford.edu/wx881td7029 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.