Longwanqun National Forest Park is a nationally protected nature area in Huinan County, Jilin, China. Geographically, it is part of the western Changbai Mountains. A notable feature of the park are a group of volcanic crater lakes: the Sanjiaolong Crater Lake , Dalong Crater Lake , Erlong Crater Lake , Xiaolong Crater Lake , Donglong Crater Lake , Nanlong Crater Lake , Hanlong Crater Lake .
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