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Across 4. low land between hills or mountains 6. area of flat or gently rolling low land 8. part of a sea or ocean extending into the land, usually larger than a bay 9. side of a hill or mountain 11. gap between mountains 13. triangle-shaped area of land at the mouth of a river 14. flat land that is near the edges of a river and is formed by silt deposited by floods 15. hill of sand piled up by the wind 16. bowl-shaped area of land surrounded by higher land 18. narrow strip of land connecting two larger areas of land 20. land that has water on all sides 22. flat-topped mountain with steep sides 24. place where a river begins 26. steep drop from a high place to a lower place in a stream or river 27. large waterfall 32. land that rises above the land around it 34. area of high, mostly flat land 36. any area of water extending into the land from a larger body of water 37. ridge of sand, rock, or coral that lies at or near the surface of a sea or ocean 38. the level of the surface of an ocean or a sea 39. deep, narrow valley with steep sides 41. land along a river 44. point of land that extends into water 45. line on a mountain above which it is too cold for trees to grow 47. deepest part of a body of water 49. body of salt water smaller than an ocean 50. land along a sea or ocean

Down 1. high, steep face of rock or earth 2. land that is almost completely surrounded by water 3. area of grassland and scattered trees 5. hilly area at the base of a mountain 7. row of mountains 10. area of flat land along a sea or ocean 12. body of salt water larger than a sea 17. narrow channel of water connecting two larger bodies of water 19. highest kind of land 21. place where a river empties into another body of water 23. top of a mountain 25. stream or river that flows into a larger stream or river 28. large stream of water that flows across the land 29. high, steep face of rock or earth 30. dry land with few plants 31. large ice mass that moves slowly down a mountain or across land 33. body of shallow water 35. area along which rivers form waterfalls or rapids as the rivers drop to lower land 38. area of low, wet land with trees 40. lowland with moist soil and tall grasses 42. an inlet of the sea or some other body of water, usually smaller than a gulf 43. opening in the earth, often raised, through which lava, rock, ashes, and gases are forced out 46. area of water and fertile land in a desert 48. body of water with land on all sides