Back Valle del Río dos Sinos Spanish Vallée du Rio dos Sinos French Vale do Rio dos Sinos Portuguese
The Sinos River Valley is situated northeast of the state of Rio Grande do Sul, Southern Brazil, covering two geomorphologic provinces: the Southern plateau and central depression, an area of almost 1398.5 km2, consisting of 14 municipalities. The Sinos River Basin consists of up to 32 municipalities.