LAKE BAIYANGDIAN, in the central part of Hebei province about 100 kilometers south of Beijing, was formed 1.5 million years ago by rivers flowing in from the Taihang Mountains to its northwest. For...
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LAKE BAIYANGDIAN, in the central part of Hebei province about 100 kilometers south of Beijing, was formed 1.5 million years ago by rivers flowing in from the Taihang Mountains to its northwest. For...