Beni River

The Beni River is a river in Bolivia's northwestern region. It flows northeast from its headwaters north of La Paz. Its mouth is on the Madre de Dios River. It flows through highland forest and rainforest in the upper reaches of its course, where the Cachuela Esperanza rapids disrupt the river's upstream navigability. The middle river flows through dense rainforest before joining the Madidi and Tuichi rivers, which flow through Madidi National Park. Upstream from the town of Rurrenabaque, the Tuichi River joins the Beni River. The Beni River flows through the Llanos de Moxos, also known as the Beni Savanna and named after the river, north of Rurrenabaque. At Riberalta, it empties into the larger Madre de Dios.

The Beni River has several minor tributaries, including intermittent streams like the Emero River.

The CIA received unverified information in 1947 indicating that there were settlements of escaped Nazis along the Beni and its tributaries.

Length: 1,100 km (680 mi- shared with Brazil)