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- Europe's third-longest river
- Siberian river
- The Trans-Siberian Railroad crosses them
- Caspian feeder
- It flows for 1,575 miles
- Narodnaya is the tallest of them
- Part of the Europe-Asia boundary
- Russian chain
- River to the Caspian Sea
- River through Magnitogorsk
- Range extending about 1,500 miles to Kazakhstan
- Europe and Asia boundary
- Continental divide
- ___ Mountains (Asian border)
- Range bordering Europe