Dos Marmelos River (Portuguese: Rio dos Marmelos) is a river of Amazonas state in north-western Brazil. It is a tributary of the Madeira River, and merges into this river about 80 km (50 mi) upstream from the town of Manicoré.

Quick Facts Native name, Location ...

Dos Marmelos River
Native name	Rio dos Marmelos (Portuguese)
Location
Country	Brazil
Physical characteristics
Source
• location	Campos Amazônicos National Park, Amazonas
• coordinates	8°39′4.806″S 61°58′22.0944″W
• elevation	120 m (390 ft)
Mouth
• location	Madeira
• coordinates	6.147621°S 61.786841°W / -6.147621; -61.786841
• elevation	30 m (98 ft)
Length	510 km (320 mi)[1]
Basin size	27,572.2 km2 (10,645.7 sq mi)[2]
Discharge
• location	Confluence of Madeira, Amazonas
• average	(Period: 1971–2000)1,556.5 m3/s (54,970 cu ft/s)[2]
Basin features
Progression	Madeira → Amazon → Atlantic Ocean
River system	Amazon
Tributaries
• left	Preto, Maici
• right	Branco, Sepoti

Close

The headwaters of the river are in the Campos Amazônicos National Park, a 961,318 hectares (2,375,470 acres) protected area created in 2006 that holds an unusual enclave of cerrado vegetation in the Amazon rainforest.^[3]

• List of rivers of Amazonas