The Muriaé River (Portuguese: Rio Muriaé) is a river in southeastern Brazil, flowing through the states of Minas Gerais and Rio de Janeiro. It is a significant tributary of the Paraíba do Sul River, one of the most important rivers in the region.
Geography
- Source: The Muriaé River originates in the Serra da Mantiqueira mountain range, within the municipality of Muriaé, in the state of Minas Gerais, at an elevation of approximately 800 meters (2,600 feet).
- Course: From its source, the river generally flows in an easterly and southeasterly direction. It initially traverses the Zona da Mata region of Minas Gerais, passing through the city of Muriaé, which derives its name from the river. It then enters the state of Rio de Janeiro.
- Major Cities: Along its course, the Muriaé River passes through several important municipalities, including Muriaé (MG), Itaperuna (RJ), and Laje do Muriaé (RJ).
- Confluence: The Muriaé River empties into the Paraíba do Sul River, on its left bank, in the northern part of the state of Rio de Janeiro, near the municipality of Campos dos Goytacazes.
- Length: The river has an approximate length of 250 kilometers (155 miles).
- Basin: The Muriaé River basin is an integral part of the larger Paraíba do Sul River basin. The region is characterized by rolling hills and agricultural lands, with significant cultivation of sugarcane, coffee, and livestock farming.
Hydrology and Environment
The Muriaé River is known for its varying flow rates, influenced by seasonal rainfall. Its lower reaches are particularly susceptible to flooding during the rainy season, which typically occurs from December to March, often impacting downstream communities and agricultural areas. The river's waters are used for irrigation, domestic supply, and contribute to the ecological balance of the region. Like many rivers in developed areas, it faces challenges related to pollution from urban and agricultural runoff.
Etymology
The name "Muriaé" is of Tupi-Guarani origin, an indigenous language spoken in Brazil. It is believed to mean "river of bats" or "house of bats" (muri = bat, aé = house/river of).
Economic Significance
The river's basin plays a crucial role in the local economy, particularly through agriculture. Its waters support irrigation for various crops, contributing to the livelihoods of communities along its banks.