Aerial China:China’s narrowest county Yanjin County, Zhaotong City, Yunnan Province Aerial China:China’s narrowest county Yanjin County, Zhaotong City, Yunnan Province 10 agosto 2021 https://www.youtube.com/watch?v=5wvh37FHywQ Aerial China:China’s narrowest county Yanjin County, Zhaotong City, Yunnan Province