Scale approximately 1:550,000 (W 90⁰10ʹ--W 88⁰30ʹ/N 14⁰30ʹ--N 13⁰10ʹ).
Note
Also shows railroads. "Datos tomados del Mapa Preliminar de 1955." Includes notes, inset of airline routes from San Salvador to other major cities in the region, and table of distances between cities with road and railroad types.