published by the National Imagery and Mapping Agency. Depths shown by isolines and soundings. Relief shown by spot heights. "Soundings in meters." "From a Brazilian chart of 1870." Georeferenced nautical chart. Map no. 24290. 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. (1998). Brazil--north coast, Ilha do Machadinho to Cabo Gurupi (Raster Image). LandInfo. Available at: https://purl.stanford.edu/ns405sn7650 This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.