. "The Stony Tunguska River is 1,159 miles (1,865 km) long. It has a drainage area of 240,000 km\u00B2. It flows into the Yenisei. The countries within its drainage basin are: Russia"@en . . "How long is the Stony Tunguska River"@en . "The Stony Tunguska River is 1,159 miles (1,865 km) long. It has a drainage area of 240,000 km\u00B2. It flows into the Yenisei. The countries within its drainage basin are: Russia"@en .