| 41. | New earth observation tools have supplied a much enhanced ability to detect potential rock slide hazards.
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| 42. | Rock slides are not unheard of in Yosemite.
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| 43. | The danger isn't just from unexploded ordnance, she added, but also from avalanches and rock slides.
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| 44. | "You don't stand in front of or try to facilitate a rock slide, " he said.
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| 45. | It cracked highways and roads, triggered rock slides, shook houses and knocked over home fuel tanks.
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| 46. | But he does not notice the large boulders on the road from a small rock slide.
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| 47. | Just inside the canyon is the Rock Slide.
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| 48. | Rock slides happen here all the time.
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| 49. | Friday's quake caused rock slides in Alishan.
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| 50. | The quake also unleashed some rock slides.
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