The Ucayali River is one of the major rivers in Peru, flowing approximately 1,100 kilometers (about 685 miles). It originates in the Andes Mountains and is a significant tributary of the Amazon River. The river plays a crucial role in the region's ecosystem and supports diverse wildlife. The Ucayali River is vital for local communities, providing water for drinking, fishing, and transportation. It flows through the Ucayali Region, which is known for its rich biodiversity and indigenous cultures. The river's basin is also important for agriculture and is a key area for sustainable development efforts.