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.
Municipalities Araricá Canoas Campo Bom Dois Irmãos Estância Velha Esteio Ivoti Nova Hartz Nova Santa Rita Novo Hamburgo Portão São Leopoldo Sapiranga Sapucaia do Sul
See also Vale do Sinos Technology Park, VALETEC Park