Unini
Unini is a mapped river in the YearMaps hydrographic index. River courses organise settlement, agriculture and frontier-making more durably than any political boundary, and this reach is indexed against the dams, lakes and cities within its catchment.
- Feature Class
- River
- Coordinates
- -1.56°, -63.12°
About Unini
The Unini River (Portuguese: Rio Unini) is a river located in the Amazonas state in north-western Brazil.
It serves as a right tributary of the Rio Negro.
Encyclopedic summary adapted from Wikipedia: Unini River (CC BY-SA 4.0).
Unini in Depth
Course
The Unini River originates from the confluence of the Água Preta stream and the Preto River.
From there, it flows eastward towards the Rio Negro, serving as the border between the Rio Unini Extractive Reserve to the north and the Jaú National Park to the south.
The river basin has about 1,500 streams and over 1,000 lakes, with an estimated length of 400 kilometres (250 mi) from its mouth to the headwaters.
The largest tributaries are the Papagaio, Paunini and Solimõezinho streams.
The Unini River is characterized by its generally acidic water with minimal suspended material.
Its meandering course, along with its tributaries, gives rise to a diverse array of aquatic environments, including lakes, rivers, creeks, and flooded forests.
Sections adapted from Wikipedia: Unini River (CC BY-SA 4.0).
Unini: Key Facts
| Mouth | Rio Negro |
|---|---|
| Drainage system | Amazon basin |
Facts from Wikidata Q7885257 (CC0).
Major River Dossiers
Hand-written studies of the great river systems of history.
Connected Reaches
Nearby watercourses in the same drainage network.
Water Bodies in the Catchment
Settlements Along the Reach
Hydraulic Infrastructure Nearby
Surrounding Terrain
Unini: Quick Answers
- Where is Unini?
- Unini is located in Brazil, at 1.5560° S, 63.1221° W.
- Are there dams on the Unini?
- No dam on the Unini is recorded in the YearMaps dam index, which covers major structures only.