| 31. | Four avenues opened out of the small cavern which the great rock stood in
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| 32. | There ' s an enormous cavern about 300 feet down , just below the cave entrance
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| 33. | Parameter inversion and constructing simulation of certain large underground cavern
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| 34. | Tunnel alignment with the boundary control facilities within a cavern system
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| 35. | For hundreds of years the statue had remained buried in an underground cavern
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| 36. | An artificial structure or excavation made to resemble a cave or cavern
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| 37. | I landed , and slopped through the timber and up the ridge and into the cavern
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| 38. | Stability ranking system of rockmass surrounding a large - scale underground cavern group
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| 39. | So , stability of rock mass around underground cavern grows more remarkable
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| 40. | New mexico and arizona 7 days antelope canyon , saguaro park , carlsbad cavern . . .
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