Tigre River

The Tigre River is a Peruvian tributary of the Marañón River, located west of the Nanay River. It becomes navigable for about 125 miles (201 kilometers) from where it meets the Marañón River. The Tigre River begins at the point where two Ecuadorian rivers, the Conambo and Pintoyacu, join together near the border of Peru.

This river flows entirely across flat lands, similar to the Nanay River. Its mouth, or where it ends, is about 42 miles (68 kilometers) west of the place where the Ucayali River joins the Marañón River. After the Tigre, other short rivers such as the Parinari, Chambira, and Nucuray flow westward along the Marañón, sharing similar characteristics with the Nanay.

The name "Tigre" means "tiger" in Spanish, and in this area it is used to refer to the Jaguar, a large and powerful wild cat that lives in the region.