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Across 4. For centuries people have traveled this river 6. This is the longest river in Europe 9. This is North Americas longest and most important river 11. This river flows across northern India and into Bangladesh 12. This river is about 4000 miles long 13. This is the worlds longest river

Down 1. This and another river flows across a low flat plain 2. This river is also known as Huang He 3. It is separated from the caribbean sea by part of mexico called the Yucatan 5. Several other country's most rugged mountains ranges make up these mountain 7. These are Europe's highest mountain are in the north 8. These mountains stretch about 1500 miles along the northern border 10. This and another river are known as exotic rivers 12. These mountains reach up to 18000 feet tall