Related Clues:

• The third longest river in Europe, after the Volga and the Danube
• River feeding Caspian Sea
• Mountain range in Russia
• River invading our allotment
• River in the country beginning to disappear
• European border
• Very long Russian river
• Eurasia's __ Mountains
• It flows to the Caspian
• __ Mountains: European border range
• Source for Fabergé's gems
• Territory between Ukraine and Siberia on a Risk board
• Where men go, but not in river
• Russian river in country with source obscured
• Some larkspur, a lovely flower