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简介：格凸河位于贵州省南部，紫云县苗岭山峡谷，格凸河在流进苗岭山主峰一个巨大的黑暗洞口之后便从地表消失，变成地下暗河。格凸河去了哪里？巨洞里面到底隐藏这怎样的秘密？收起
巨洞天成 地理中国 20110506
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