Solimões (Portuguese pronunciation:[soliˈmõjs]) is the name often given to upper stretches of theAmazon River inBrazil from its confluence with theRio Negro upstream to the border ofPeru. The Solimões flows for about 1,600 km (1,000 miles) through a floodplain about 80 km (50 miles) wide.^[1]

The Amazon / Solimões river just above the confluence of the Solimões and Rio Negro is already by far the largest river in the world, even though its two largest tributaries (the Negro and theMadeira River) have not yet contributed to the flow volume.

The Solimões portion of the Amazon River lies entirely in the state ofAmazonas, Brazil, and some portion of the state is often referred to as the "Solimões region". The ecoregion of the Solimões Riverdrainage basin is entirelytropical rainforest.

An Amazonian aboriginal nation calledSoriman was corrupted inPortuguese toSolimão andSoliemoens, from which the name of this section of the river and the region it drains is derived.^{[citation needed]}

Use of the nameSolimões for the upperAmazon is mostly confined toBrazilian speakers ofPortuguese; the rest of the world refers to both the upper and lower portions of the river as theAmazon.

• Marañón River
• List of rivers of Amazonas

• "Solimões River description".Pacific Island Travel.com. Archived fromthe original on 2004-06-27.

• "Amazon River in Peru and Brazil".Bartlby.com. Archived fromthe original on 2004-10-13.

04°38′09″S70°15′57″W / 4.63583°S 70.26583°W /-4.63583; -70.26583