Guatemala. Instituto Geografico Nacional. North Decimal Degree 15.500000. South Decimal Degree 15.3333. East Decimal Degree -90.2500. West Decimal Degree -90.5000. Alternate title: [Mapa geologico = Geologic map]: Coban, Guatemala. Universal transverse Mercator projection. Relief shown by 20 m. with supplementary 10 m. contour interval and spot heights. "El levantamiento geologico de esta hoja se efectuo dentro del programa colaborativo del Instituto Geografico Nacional (IGN) y el Servicio Geologico Aleman.".