Q. Narva River basin countries are __?
Answer: Estonia & Russia
Notes: Estonia and Russian form the basin countries of the Narva River. Narva River, also known as Narova, is the largest river in Estonia by discharge. The source of the river is Lake Peipsi and the river drains at the Narva Bay in the Gulf of Finland. The Narva River was used as a trade route during the Viking age from the 5th to 11th centuries. It won an offshoot of the trade route from the Varangians to the Greeks.