The Irrawaddy River, also known as the Ayeyarwady River, is a major river in Myanmar (formerly Burma). It is the longest river in the country, running for over 2, 170 miles from the Himalayas to the Andaman Sea. The Irrawaddy is an important source of transportation, irrigation, and power for the people of Myanmar. It is also home to a variety of wildlife, including fish, birds, and mammals.