Related Clues:

• ___ the Hyena of 'Li'l Abner'
• Siberian river
• Caspian feeder
• It flows for 1,575 miles
• Longest river in Europe
• Horne who sang 'Stormy Weather'
• Part of the Europe-Asia boundary
• Russia/Manchuria boundary river
• Russian chain
• River to the Caspian Sea
• St. Petersburg's river
• St. Petersburg river
• Longest river of Europe
• River through Magnitogorsk
• Range extending about 1,500 miles to Kazakhstan