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Didonghe Tiankeng in Hanzhong, NW China's Shaanxi (1/6)

2019-05-20 13:57:42 Ecns.cn Editor :Yao Lan

$An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China\'s Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)$

An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China's Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)

$An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China\'s Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)$

An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China's Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)

With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)

$An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China\'s Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)$

An aerial photo shows a waterfall in Didonghe Tiankeng, a giant karst sinkhole at Huoshizi Village of Ningqiang County in Hanzhong, northwest China's Shaanxi Province. With a maximum depth of 340 meters, the Didonghe Tiankeng is the largest in Chanjiayan Tiankeng Group in Ningqiang County. (Photo/Xinhua)