Huehuetenango is one of the 22 departments of Guatemala. It is located in the western highlands and shares the borders with the Mexican state of Chiapas in the north and west; with El Quiché in the east, with Totonicapán, Quetzaltenango and San Marcos in the south. The capital is the city of Huehuetenango. Huehuetenango's ethnic composition is one of the most diverse in Guatemala. While the Mam are predominant in the department, other Maya groups are the Q'anjob'al, Chuj, Jakaltek, Tektik, Awakatek, Chalchitek, Akatek and K'iche'. Each of these nine Maya ethnic groups speaks its own language. The department of Huehuetenango takes its name from the city of the same name which serves as the departmental capital. The name derives from the Nahuatl language of central Mexico, given by the indigenous allies of the Spanish conquistadors during the Spanish Conquest of Guatemala. It is usually said to mean "place of the elders", but it may also mean a "place of the ahuehuete trees". Huehuetenango covers an area of in western Guatemala and is bordered on the north and west by Mexico. On the east side it is bordered by the department of El Quiché and on the south by the departments of Totonicapán, Quetzaltenango and San Marcos. The department encompasses almost the entire length of the Sierra de los Cuchumatanes mountain range, although there is a wide difference in altitude across the department, from heights of above mean sea level to as low as above sea level, encompassing an equally wide variation in local climate, ranging from mountain peaks where the temperature sometimes falls below freezing to tropical lowland rainforest. The department possesses various rivers that flow into the Chixoy River, also known as the Río Negro, which flows into the system of rivers forming the drainage basin of the Usumacinta River, which empties into the Gulf of Mexico. The most important tributaries of the Chixoy in Huehuetenango are the Hondo and Xecunabaj rivers, which flow into the department from the neighbouring departments of El Quiché and Totonicapán.