Guatemala. Instituto Geografico Nacional. North Decimal Degree 14.500000. South Decimal Degree 14.3333. East Decimal Degree -90.5000. West Decimal Degree -90.7500. Alternate title: Mapa geologico = Geologic map: Amatitlan, Guatemala. Universal transverse Mercator projection. Relief shown by 20 m. with supplementary 10 m. contour interval and spot heights. "El levantamiento geologico se efectuo en 1969 dentro del programa colaborativo entre Dartmouth College de New Hampshire, Estados Unidos de America y el Instituto Geografico Nacional.".