Owl Valley flag is located at the Summit of Owl Valley or mountain tops of the Dragon (Long) has a height of 1,700 m above sea level, in the Valley Township, Dong van district, Ha Giang Province, where Vietnam's northernmost points. From atop the flag look down to Earth has 2 ponds on either side of the mountain never shallow water called dragon eye , is the source of water for the use of the two peoples.
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