Relief shown by 25 m contour intervals and spot heights. "Red numbered lines indicate the 1,000 meter East Africa belt grid, Clarke 1880 spheroid." "Reprint by NIMA 04-99." "Horizontal datum: local. Vertical datum: mean sea level Atlantic Ocean at Point-Noire." Includes glossary and index to boundaries. "Standard map series designation: Series Z901. "NIMA ref. no. Z901XLULUAB."