The Republic of Peru is a megadiverse country located along the central western coast of South America. It is home to a large variation of habitats, including arid coastal plains, the mountainnous landscape of the Andes and the lush tropical rainforest environments that constitutes a part of the Amazon Basin.

Peru is bordered by the Pacific Ocean in the west, Ecuador and Colombia in the north, Brazil in the east, Bolivia in the southeast, and Chile in the south. It is the third largest country in South America.

peru country

The three main regions of Peru

La Costa

La Costa (the coast) is the region between the Pacific Ocean and the Andes mountains. This narrow sliver of coastal plain is arid, except for the valley areas watered by seasonal rivers.

La Sierra

La Sierra, the highland region of Peru, is a part of the Andes mountain range. This is where you find the famous lake Titicaca and Peru´s higheest peak Huascarán. Huascarán has an altitude of 6,768 meters.

La Selva

La Selva, the forest region, extends east of the Andes mountains and is covered in Amazon rainforest. Nearly 60% of Peru´s territory is located within this region.

The hydrographic basins of Peru

Peru has 54 hydrographic basins and only two of them empties somewhere else than the Pacific Ocean. One is the Amazon hydrographic basin which empties into the Atlantic Ocean and the other is the endorheic basic of Lake Titicaca in the Andes Mountains. All the other 52 hydrographic basins discharge their water into the Pacific Ocean on the western side of the Andes.

The most famous of the Peruvian rivers is of course the River Amazon, which is shared by Peru, Colombia and Brazil. Other examples of long rivers in Peru are Ucayali, Huallaga, Mantaro, Marañón, Putumayo, Yavarí and Urubamba.

Most rivers in Peru originate in the peaks of the Andes. Those that originate in the Andes and drain into the Pacific Ocean are steep and don´t have very far to go before they reach the sea. The water that goes from the Andes to the Atlantic Ocean will of course have a much longer way to go, and once the waterways leave the highlands they become less steep.

Waterways that drain into Lake Titicaca are generally short.

Lakes and reservoirs

The largest lake in Peru is Lake Titicaca, which is shared with Bolivia, high in the Andes. This is also the largest lake in all of South America.

The largest reservoirs in Peru are all found near the coast. They are the reservoirs Poechos, Tinajones, San Lorenzo, and El Fraile.

Lake Titicaca

Lake Titicaca

Lake Titicaca is a deep lake straddling the border between Peru and Bolivia. With a surface elevation of 3,812 meters it is often referred to as the highest navigable lake in the world. Some lakes are located at higher elevations than this, but they are too small to be considered navigable.

The Spanish name for Lake Titicaca is Lago Titicaca. In Quechua, the name is Titiqaqa Qucha.

Lake Titicaca is the largest lake in South America, both by surface area and by volume of water. Lake Maracaibo in Venzuela has a larger surface area, but that is strictly speaking not a true lake – it is a tidal bay.

Short facts about Lake Titicaca

  • Coordinates: 15°45′S 69°25′W
  • Catchment area: Circa 58,000 square kilometres
  • Basin countries: Peru and Bolivia
  • Surface elevation: 3,812 meters
  • Surface area: 8,372 square kilometres
  • Max length: Circa 190 km
  • Max width: Circa 80 km
  • Max depth: 281 meters
  • Average depth: 107 meters
  • Water volume: 893 cubic kilometres
  • Shore length: 1,125 km
  • Islands: There are over 40 islands in this lake
  • Lake Titicaca was declared a Ramsar Wetland in 1997.