The photo, taken on June 23, shows the Ciyantang Interchange of Sangzhi-Longshan Expressway in Longshan County which is under construction currently. Sangzhi-Longshan Expressway is a section of the G5515 expressway, connecting Hunan's Zhangjiajie and Sichuan's Nanchong. This expressway features two-way, four-lane traffic and spans a total length of 61.5 kilometers. Upon completion, an expressway network will be formed in northwestern Hunan, linking Hunan with Hubei, Chongqing, and Sichuan. It will be of great significance to the development of the regions in the west of Wuling Mountain. (Photo/Zeng Xianghui)

The photo, taken on June 23, shows the Ciyantang Interchange of Sangzhi-Longshan Expressway in Longshan County which is under construction currently. Sangzhi-Longshan Expressway is a section of the G5515 expressway, connecting Hunan's Zhangjiajie and Sichuan's Nanchong. This expressway features two-way, four-lane traffic and spans a total length of 61.5 kilometers. Upon completion, an expressway network will be formed in northwestern Hunan, linking Hunan with Hubei, Chongqing, and Sichuan. It will be of great significance to the development of the regions in the west of Wuling Mountain. (Photo/Zeng Xianghui)

The photo, taken on June 23, shows the Ciyantang Interchange of Sangzhi-Longshan Expressway in Longshan County which is under construction currently. Sangzhi-Longshan Expressway is a section of the G5515 expressway, connecting Hunan's Zhangjiajie and Sichuan's Nanchong. This expressway features two-way, four-lane traffic and spans a total length of 61.5 kilometers. Upon completion, an expressway network will be formed in northwestern Hunan, linking Hunan with Hubei, Chongqing, and Sichuan. It will be of great significance to the development of the regions in the west of Wuling Mountain. (Photo/Zeng Xianghui)