| 41. | The airport hosted USAF Air Defense Command Hanford Nuclear Reservation and Grand Coulee Dam.
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| 42. | They knew it as Tourond's Coulee.
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| 43. | He won the nomination over Arnold Hiebert, a lumber merchant from Plum Coulee.
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| 44. | The Grand Coulee Dam premiered its first non-laser light show in 1957.
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| 45. | The Dubuque area is in the Coulee Region.
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| 46. | The coulee builds a canyon up to deep.
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| 47. | The trail is known for the rural scenery and terrain of the Coulee Region.
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| 48. | East Foster Creek now flows east to west through Foster Coulee to Grand Coulee.
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| 49. | East Foster Creek now flows east to west through Foster Coulee to Grand Coulee.
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| 50. | The central volcano has a lava coulee and a tephra cone in its crater.
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