|Source||confluence of Cunambo and Pintoyacu rivers|
|Length||760 km (470 mi)|
|Basin size||45,073 km2 (17,403 sq mi)|
|• location||Confluence of Marañón (near mouth)|
|• average||2,716.4 m3/s (85.72 km3/a) 3,279 m3/s (115,800 cu ft/s)|
The Tigre River (Spanish pronunciation: [ˈtiɣɾe] ) is a Peruvian tributary of the Marañón River west of the Nanay River. It is navigable for 125 mi (201 km) from its confluence with the Marañón. It forms from the confluence of the Ecuadorian rivers Cunambo and Pintoyacu at the Peruvian border. Like the Nanay, it flows entirely on the plains. Its mouth is 42 mi (68 km) west of the junction of the Ucayali River with the Marañón. Continuing west from the Tigre along the Marañón River we have the Parinari, Chambira, and Nucuray, all short lowland streams, resembling the Nanay in character. Tigre is Spanish for "tiger" the vernacular name in the region for the Jaguar .
The Amazon River in South America is the largest river by discharge volume of water in the world, and the disputed longest river in the world in comparison to the Nile.
The Marañón River is the principal or mainstem source of the Amazon River, arising about 160 km to the northeast of Lima, Peru, and flowing through a deeply eroded Andean valley in a northwesterly direction, along the eastern base of the Cordillera of the Andes, as far as 5° 36′ southern latitude; from where it makes a great bend to the northeast, and cuts through the jungle Andes, until at the Pongo de Manseriche it flows into the flat Amazon basin. Although historically, the term "Marañon River" often was applied to the river all the way to the Atlantic Ocean, nowadays the Marañon River is generally thought to end at the confluence with the Ucayali River, after which most cartographers label the ensuing waterway the Amazon River.
The Napo River is a tributary to the Amazon River that rises in Ecuador on the flanks of the east Andean volcanoes of Antisana, Sincholagua and Cotopaxi.
The Nanay River is a river in northern Peru. It is a tributary of the Amazon River, merging into this river at the city of Iquitos. The lower part of the Nanay flows to the north and west of the city, while the Itaya River flows to the south and east. Other nearby settlements on the Nanay River include the villages of Santo Tomás, Padre Cocha, and Santa Clara. During periods when the river is low, the many beaches along the Nanay are popular destinations. The Nanay belongs entirely to the lowlands, and is very crooked, has a slow current and divides into many canos and strings of lagoons which flood the flat, low areas of country on either side. It is simply the drainage ditch of districts which are extensively overflowed in the rainy season. Captain Archibald Butt USN, ascended it 195 mi (314 km), to near its source. A part of the Nanay River flows through the Allpahuayo-Mishana National Reserve.
The Pastaza River is a large tributary to the Marañón River in the northwestern Amazon Basin of South America.
The Ucayali River is the main headstream of the Amazon River. It rises about 110 km (68 mi) north of Lake Titicaca, in the Arequipa region of Peru and becomes the Amazon at the confluence of the Marañón close to Nauta city. The city of Pucallpa is located on the banks of the Ucayali.
Iquitos is the capital city of Peru's Maynas Province and Loreto Region. The largest metropolis in the Peruvian Amazon, east of the Andes, it is the ninth-most populous city of Peru. It is the largest city in the world that cannot be reached by road – it is accessible only by river and air.
Loreto is Peru's northernmost department and region. Covering almost one-third of Peru's territory, Loreto is by far the nation's largest department; it is also one of the most sparsely populated regions due to its remote location in the Amazon Rainforest. Its capital is Iquitos.
The Apure River is a river of southwestern Venezuela, formed by the confluence of the Sarare and Uribante near Guasdualito, in Venezuela, at, and flowing across the Llanos into the Orinoco. It provides significant transportation in the area.
The Biobío River is the second largest river in Chile. It originates from Icalma and Galletué lakes in the Andes and flows 380 km to the Gulf of Arauco on the Pacific Ocean.
The Curaray River is a river in eastern Ecuador and Peru. It is a tributary of the Napo River, which is a part of the Amazon basin. The land along the river is home to several indigenous people groups including the Kichwa and Huaorani. The river itself is home to caimans, and piranhas.
The Jaén Province is one of the thirteen provinces in the Cajamarca Region of Peru. Geographically, the province has a mountainous terrain crisscrossed by the rivers of the Huancabamba-Chamaya Basin, which drain towards the Marañón River. Its weather is characterized by high temperatures all year long and heavy rains from October through March. Agriculture and husbandry absorb over half of the province workforce. rice and coffee are main crops.
While Peru accounts for about four per cent of the world's annual renewable water resources, over 98% of its water is available east of the Andes, in the Amazon region. The coastal area of Peru, with most of economic activities and more than half of the population, receives only 1.8% of the national freshwater renewable water resources. Economic and population growth are taking an increasing toll on water resources quantity and quality, especially in the coastal area of Peru.
El Sira Communal Reserve is a protected area in Peru created to preserve the biodiversity of the Sira Mountains and the ancestral sustainable use of the area's resources by the nearby native peoples. It also protects the headwaters of the Pachitea river basin. The reserve covers an area of 616,413 hectares (6,164.13 km2) within the regions of Huánuco, Pasco and Ucayali. The reserve was created in 2001 and in 2010, UNESCO recognized it as part of the Oxapampa-Asháninka-Yánesha Biosphere Reserve.
Allpahuayo-Mishana National Reserve is a protected area in Peru located southwest of Iquitos in the region of Loreto. It was established in 2004 to protect the diverse forest types in the area, especially the rainforests on white sandy soil and watercourses which provide drinking water to the city of Iquitos.
Bucaná River is a river in the municipality of Ponce, Puerto Rico. Río Bucaná has its origin in barrio Machuelo Arriba where it forms at an altitude of 115 feet (35 m). It forms from the confluence of Río Cerrillos and Río Bayagán. It is also fed by Río Portugues during its southernly run. Río Bucaná used to run for some 29.5 kilometers (18.3 mi) prior to canalization and other diversion work by the U.S. Army Corps of Engineers. It now runs for 5.89 miles (9.48 km) to drain into the Caribbean Sea. This river is one of the 14 rivers in the municipality.
Chiquito River is a river in the municipality of Ponce, Puerto Rico. This river feeds into Río Portugués in the sector called Parras, about 0.5 km (0.3 mi) north of the intersection of PR-504 and PR-505. It has its origin in the mountains west of Montes Llanos. Río Chiquito is fed by Quebrada del Pastillo. This river is one of the 14 rivers in the municipality of Ponce.
The Itaya River is a tributary of the Amazon River via the Nanay River in northern Peru. The Itaya flows alongside the city of Iquitos and the district of Belén.
The Yuraqmayu or Río Blanco is a 36.2 km long river in Peru located in the Lima Region, Huarochirí Province, in the districts of Chicla and San Mateo. It is a left tributary of the Rimac River which empties into the Pacific Ocean.