United States. Army Map Service. North Decimal Degree 43.0000. South Decimal Degree 42.0000. East Decimal Degree -0.0000. West Decimal Degree -1.0000. Alternate title: Huesca, Spain. Polyconic projection. With Spanish-English glossary. Relief shown by 100 m. contour interval, gradient tint and spot heights. Standard map series designation: A.M.S. M581. "Compiled from Spain, 1:50,000, Instituto Geografico, 1929-1936; Spain, 1:200,000, Mapa Militar, Cuartel General del Generalisimo, sheets 17 and 27, 1928; France, 1:100,000, AMS M661, sheet 7R&S, 1943; Spain and Portugal Road Map, 1:400,000, AMS M481, 1943, sheet 42; Railways in Spain and Portugal, 1:1,500,000, G.S.G.S. 4170, 1941 (corrected copy).".