This is a list of lakes in the Beni Department, Bolivia. The Beni Department lies largely within the Llanos de Moxos, a seasonally flooded tropical savanna of the upper Madeira River basin in the Bolivian Amazon. The Llanos de Moxos landscape includes forested natural levees (), sparsely wooded backslopes (), and seasonally flooded interfluvial basins (), with forest islands scattered throughout. Several hundred perennial lakes occur across the region.
Most of the lakes are shallow — typically less than deep, with flat bottoms. Many are distinguished by rectangular or oval outlines and a northeast–southwest orientation; approximately 700 such geometric and 'oriented' lake basins have been identified in the Llanos de Moxos, covering about ( including dry lakes). Annual rainfall in the region ranges from to , concentrated in a wet season from November to April. Satellite estimates from 1979 to 1987 put the area flooded across the Llanos de Moxos floodplain between and , with a median of .
The origin of the oriented lake shapes has been debated. A tectonic model proposed in 1964 argued that rectangular lake basins are surface expressions of subsiding or vibrating basement blocks. A 2014 study rebutted the basement blocks theory, proposing instead a process in which basin depressions were subsequently reshaped by wind and waves. Separately, neotectonic uplift along the southern margin of the Fitzcarrald Arch has been proposed as the origin of larger ria lakes such as El Océano Lake and Rogaguado Lake, whose basins formed as river drainage backed up behind rising knickpoints.
The lakes and waterways of the Llanos de Moxos have been modified by pre-Columbian peoples living in the Llanos de Moxos, who built networks of earthen fish weirs across the seasonally-flooded plains of Baures, as well as settlements linked by causeways and served by canals and reservoirs.
Some of the lakes in the Beni Department lie outside the Llanos de Moxos, in the Southwest Amazon moist forests or the Madeira–Tapajós moist forests.
Aquiles Lake Laguna Áquiles is a lake in the Beni Department, Bolivia. At an elevation of , its surface area is .
Araré Lake
Laguna de Arani or Laguna de Araré is a lake in the Marbán Province, Beni Department, Bolivia. At an elevation of , its surface area is .
Aricare Lake Laguna Aricare is a lake in the Beni Department, Bolivia. At an elevation of 180 m, its surface area is 10.33 km².
Laguna Azul Laguna Azul (Spanish for "blue lake" or "blue lagoon") is a lake in the Beni Department, Bolivia. Its surface area is 6.1 km2.
It is in the Madeira–Tapajós moist forests ecoregion.
Bolivia Lake Laguna Bolivia is a lake in the Marbán Province, Beni Department, Bolivia. At an elevation of 166 m, its surface area is 11 km².
Bravo Lake Laguna Bravo is a seasonal lake in the Yacuma Province, Beni Department, Bolivia. At an elevation of 167 m, its surface area is 25.7 km².
Buenos Aires Lake Buenos Aires Lake is a lake in the Beni Department, Bolivia. At an elevation of 206 m, its surface area is 7.6 km².
It is in the Southwest Amazon moist forests ecoregion.
Cachimbo Lake Laguna Cachimbo is a lake in the Beni Department, Bolivia. At an elevation of 196 m, its surface area is 26.56 km². It lies near the Beni border with the Santa Cruz Department.
Its dimensions are approximately long by wide.
It is in the Southwest Amazon moist forests ecoregion.
Carreras Lake Laguna Carreras is a lake in the Beni Department, Bolivia. Its surface area is 13 km2.
El Encanto Lake El Encanto Lake is a seasonal lake bordering Beni Department, Bolivia and Aguapeí, Vila Bela da Santíssima Trindade, State of Mato Grosso, Brazil. At an elevation of 170 m, its surface area is 4.5 km2.
Francia Lake
Francia Lake is a lake in the Beni Department, Bolivia. Its surface area is .Laguna Francia Wikimapia
It is in the Madeira–Tapajós moist forests ecoregion.
Guachuna Lake Guachuna Lake is a lake in the Yacuma Province, Beni Department, Bolivia. At an elevation of 150 m, its surface area is 102.8 km².Guachuna Lake Wikimapia
Its outflow is the San Miguel River.
Las Habras Lake Las Habras Lake is a lake in the Beni Department, Bolivia. At an elevation of 136 m, its surface area is 73 km2.
It is in the Southwest Amazon moist forests ecoregion.
Huachi Lake
Huachi Lake is a lake in the Beni Department, Bolivia. At an elevation of 173 m, its surface area is 67 km².
It is in the Madeira–Tapajós moist forests ecoregion.
Huaytunas Lake Huaytunas Lake is a lake in the Yacuma Province, Beni Department, Bolivia. At an elevation of 146 m, its surface area is 329.5 km².
Huaytunas Lake has two islands.
Isirere Lake
Isirere Lake or Iserere Lake is a lake in the Beni Department, Bolivia. At an elevation of 258 m, its surface area is 19.3 km².
Jara Lake
Laguna Jara is a lake in the Beni Department, Bolivia. At an elevation of 191 m, its surface area is 16.5 km2.
It is in the Madeira–Tapajós moist forests ecoregion.
Formerly, the Jorá language was spoken around the lake; it is now thought to be extinct.
Laguna Larga
Laguna Larga is a lake in the Beni Department, Bolivia. At an elevation of 148 m, its surface area is 100 km2.
Mancornadas Lake Laguna Mamornadas is a lake in the Beni Department, Bolivia. At an elevation of 163 m, its surface area is 74.16 km².
Mancornadas Lake has one island.
Maracaibo Lake Maracaibo Lake is a lake in the Cercado Province, Beni Department, Bolivia. At an elevation of 177 m, its surface area is 15.8 km2.
It is in the Madeira–Tapajós moist forests ecoregion.
Matuwal Lake Laguna Matuwal is a lake in the east part of Beni Department, Bolivia. Its surface area is 6.83 km² and a coastal perimeter of 10.1 kilometers.Laguna Matuwal Wikimapia
Matuwal lagoon is a Bolivian Amazon freshwater lagoon located near the town of Bella Vista.
Navidad Lake Navidad Lake is a lake in the Beni Department, Bolivia at an elevation of 160 m, with surface area 22.5 km2.
Nuevo Mundo Lake Nuevo Mundo Lake is a lake bordering Beni Department and Santa Cruz Department. At an elevation of , its surface area is .
It is in the Southwest Amazon moist forests ecoregion.
El Océano Lake
El Océano Lake is a lake in area of Savajes GentiosSavajes Gentios, Bolivia Page fallingrain.com in Beni Department, Bolivia.El Océano Lake geoview.info Its surface area is 100 km2.
Omoro Lake Omoro Lake, also known as Laguna Omero, is an Amazon lagoon located in Canton Magdalena, Magdalena Municipality, Iténez Province, Beni Department, Bolivia. At an elevation of 193 m. It has an elongated shape, with dimensions of 4 km long by 2 km wide and a surface area of 6 km².Laguna Omoro Wikimapia
Portia Lake Laguna Portia is a lake in the Iténez Province, Beni Department, Bolivia. At an elevation of 200 m, its surface area is 28 km2.
It is in the Madeira–Tapajós moist forests ecoregion.
La Porfía Lake Laguna La Porfía is a lake in the Yacuma Province, Beni Department, Bolivia. Its surface area is 58.5 km2.
Rogagua Lake
Rogagua Lake is a lake in the pampas area in the northern Bolivia, in the José Ballivián Province of the Beni Department.
Laguna Rogagua and some smaller lakes are north of Santa Rosa, Beni, Bolivia, and north east of Rurrenabaque and Reyes, Bolivia. Some of the popular pampas tours from Rurrenabaque go to the area of Laguna Rogagua or to the area of the Yacuma River.
Partial and shortened translation from the Spanish Wikipedia:
Rogagua Lake is a tropical Bolivian fresh water lake, located in the Amazonian river basin of the Beni Department. The Lake is 21 km in length by 9 km and has an area of 155 km² and perimeter of 52 kilometers, and is thus one of greatest lakes of Bolivia. Rogagua is an important reservoir for fresh water and wild life.
Rogaguado Lake
Rogaguado Lake is a tropical fresh water in the northern Bolivia, in the Yacuma Province of the Beni Department. It is close to the Rogagua Lake. The lake is 25,40 km long and 18,53 km wide, and it has an area of 315 km², making it one of the biggest lakes in Bolivia. It contains six islands, the biggest ones of 1 km² and the smaller ones of 0,65 km², located at the north side of the lake.
It was formed by an uplift event during the Holocene.
San Antonio Lake
San Antonio Lake is a lake in the Beni Department, Bolivia. At an elevation of 205 m, its surface area is 26 km2.
San Francisco Lake San Francisco Lake is a lake in the Beni Department, Bolivia. At an elevation of 138 m, its surface area is 12.7 km2.
It is in the Madeira–Tapajós moist forests ecoregion.
San Jorge Lake San Jorge Lake is a lake in the Guarayos Province/Marbán Province, Beni Department, Bolivia. At an elevation of 160 m, its surface area is 68.6 km².
It is in the Southwest Amazon moist forests ecoregion.
San José Lake San José Lake is east of the city of Trinidad. The lake sits at an elevation of 202 m, its surface area is 14.7 km2. It lies within the Aquicuana Reserve.
San Lorenzo Lake San Lorenzo Lake is a lake in the Beni Department around central Bolivia. East of the city of Trinidad the lake sits at an elevation of 178 m, its surface area is 26.2 km².
San Pedro Lake
San Pedro Lake is a lake in the Beni Department of Bolivia. It is in the southwest part of the Reserva Forestall Itenez at an elevation of . Its surface area is .
It is in the Madeira–Tapajós moist forests ecoregion.
San Roque Lake Laguna San Roque is a lake in the Iténez Province, Beni Department, Bolivia. At an elevation of 190 m, its surface area is 4.5 km².
Its outflow is the Rio Cunano, a tributary of the Itonomas River.
La Sarca Lake
La Sarca Lake is a lake in the Beni Department, Bolivia. At an elevation of 136 m, its surface area is 26 km2.
It is in the Southwest Amazon moist forests ecoregion.
Suárez Lake Suárez Lake is a lake in the Cercado Province, Beni Department, Bolivia. Its surface area is 6 km². It is southwest of Trinidad, Beni.
Tacuaral Lake Laguna Tacuaral is a lake in the Beni Department, Bolivia. At an elevation of 170 m, its surface area is 16.7 km2.
It is in the Southwest Amazon moist forests ecoregion.
Tanguina Lake Laguna Tanquina is a lake in Beni Department. At an elevation of 176 m, its surface area is 14.8 km2. It is within the area of Reserva Forestal Itenez, next to the northeastern border with Brazil.
It is in the Madeira–Tapajós moist forests ecoregion.
Tapada Lake Laguna Tapada also Laguna Las Canchas o Tapada or Laguna Las Conchas is a Bolivian Amazon freshwater lagoon located east of the Beni Department in the Marbán province, it is close to the Santa Cruz department.Way: Laguna Tapada (143769286) OpenStreetMapLaguna Las Canchas o Tapada Wikimapia
Tapada lagoon is at an elevation of 206 meters above sea level. With maximum dimensions of 8 km long by 6 km wide in the rainy season and a surface area of 1,901.6 hectares or 19.01 km2, it has an average rounded shape. Short distance to the north of it is Laguna Barrientos.Laguna Barrientos Wikimapia
It lies outside the Llanos de Moxos, in the Chiquitano dry forests.
Todos Santos Lake
Todos Santos Lake is a lake bordering Beni Department and Santa Cruz Department. At an elevation of 193 m, its surface area is 4.12 km2.Laguna Todos Santos Wikimapia
It is in the Madeira–Tapajós moist forests ecoregion.
El Triunfo Lake El Triunfo Lake is a lake in the Beni Department, Bolivia.Laguna Versalles o El Triunfo (Beni - Bolivia) Wikimapia
The El Triunfo lagoon is a Bolivian Amazon freshwater lagoon located in the east part of the Beni department, near the Guaporé River and 4 kilometers south of the border with Brazil. It is in the Madeira–Tapajós moist forests ecoregion. The lagoon dimensions are 5.8 kilometers in length by 5.1 kilometers in width, resulting in a surface area of . Its coastal perimeter is 17 kilometers.
It is characterized by having a round shape as well as being surrounded by a thick jungle.
Tumichuqua Lake