Smoke was first spotted on Saturday, in the forest of the Greater Hinggan mountains.
上周六，有人发现大兴安岭的林区有浓烟冒出。
The Greater Hinggan, the Lesser Hinggan and the Changbai mountain ranges in the northeast are China's largest natural forest areas.
东北地区的大兴安岭、小兴安岭和长白山区，是中国最大的天然林区，到处是望不到边的红松、落叶松、黄花松等针叶林和白桦、柞树、水曲柳、杨树、榆树等阔叶林。
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