Relief shown by spot heights. Depths shown by isolines. Standard map series designation: Series Y961. " ... 1,000 meter universal transverse Mercator grid, Clarke 1880 spheroid." Includes glossary, coverage diagram, and boundary diagram. "Map information as of 1967." "Reprinted by NIMA 3-00." "Series Y961." "NIMA ref. no. Y961XNACALA."