United States. Army Map Service. North Decimal Degree 38.0000. South Decimal Degree 37.0000. East Decimal Degree -8.0000. West Decimal Degree -9.0000. Alternate title: Lagos, Portugal. Polyconic projection. With Portuguese-English glossary. Relief shown by 100 m. contour interval, gradient tint and spot heights. Standard map series designation: A.M.S. M581. "Compiled from Portugal, 1:50,000, Servicos Geodesicos, 1921-1933; Portugal, 1:100,000, Servicos Geodesicos, 1876-1898; Portugal, 1:250,000, Estador Maior do Exercito, undated and 1935-1937; Road Map of Spain and Portugal, 1:400,000, AMS, Sheet 48, Third Edition, 1943; Railways of Spain and Portugal 1:1,500,000, GSGS, 1942; Railways of Spain, Portugal and Southern France, 1:1,300,000, Military Railway Service, 1943. Partially revised from aerial photography, 1941, 1942, 1943.".