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. The
Cuilco River enters the department from neighbouring San Marcos and crosses into the
Mexican state of
Chiapas, where it joins with the
Grijalva River, which empties into the Gulf of Mexico. Its most important tributaries in Huehuetenango are the
Apal,
Chomá and
Coxtón rivers. The
Nentón River is formed in the municipality of San Sebastián Coatán by the joining of the rivers Nupxuptenam and Jajaniguán. It flows westwards across the border into Mexico where it empties into the
Presa de la Angostura reservoir. The
Selegua River has its source in the Sierra de los Cuchumatanes and flows northwards, crossing the border into Chiapas, where it joins the Cuilco River to form the Grijalva River, to flow onwards to the Gulf of Mexico. Its principal tributaries are the Pino, Sibilá, Ocubilá, Naranjo, Colorado, Torlón, Mapá and Chicol rivers. The largest body of standing water in the department is
Laguna Yolnabaj, in the extreme north, close to the border with Mexico. Smaller lakes include Laguna Maxbal, Laguna Yolhuitz, and Laguna Seca, all in the northeast of the department. ==Population==