Where is the mouth of the Amazon River found?
Mouth location Atlantic Ocean, Brazil The Amazon estuary is some 330 kilometres (210 mi) wide. The width of the mouth of the river is usually measured from Cabo do Norte to Punto Patijoca. But this includes the ocean outlet, 60 km (40 mi) wide, of the Para river, which should be deducted, as this stream is only the lower reach of the Tocantins. It also includes the ocean frontage of Marajó, an island lying in the mouth of the Amazon. This means that the Amazon is wider at its mouth than the entire length of the Thames in England.