Geography of Guatemala

The southern edge of the western highlands is marked by the Sierra Madre, which stretches from the Mexican border south and east, and continues at lower elevations toward El Salvador. The mountain chain is characterized by steep volcanic cones, including Tajumulco Volcano 4,220 m or 13,845 ft, the highest point in the country and Central America. All of Guatemala’s 37 volcanoes (3 of them active: Pacaya, Santiaguito and Fuego), are in this mountain chain, and are abundant in the highlands.

The northern chain of mountains begins near the Mexican border with the Cuchumatanes range, then stretches east through the Chuacús and Chamá sierras, down to the Santa Cruz and Minas sierras, near the Caribbean Sea. The northern and southern mountains are separated by the Motagua valley, where the Motagua river and its tributaries drains from the highlands into the Caribbean being navigable in its lower end, where it forms the boundary with Honduras.

The rivers are short and shallow in the Pacific vertient, larger and deeper, such as the Polochic which drains in Lake Izabal, Río Dulce, Motagua and Sarstún that forms the boundary with Belize in the Caribbean and the Gulf of Mexico vertient (Usumacinta, which forms the boundary between Chiapas, Mexico and Petén and its tributaries such as La Pasión and San Pedro.

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