观看免费视频 Great Basin NP: Johnson Lake Mining Ranger Minute

(105 MB) 添加日期14 May 2016 播放70次 Nature
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Great Basin NP: Johnson Lake Mining Ranger Minute

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动画说明：

Wind, water, and ice have carved the mountains of Great Basin National Park, however beginning in the 19th century another force set upon to shape the hills: the miner's pick..