![](http://www.ecns.cn/hd/2019/08/12/2bed5ca8a4ea408c8e606581de598948.jpg)
A scene from the 400-km Gobi Desert challenge in Northwest China’s Qinghai Province, Aug. 11, 2019. Forty-seven participants joined the challenge that started at the Mars Camp in Lenghu Town and passed through the Yadan landform, a dry area with a landscape formed by wind erosion. The route has an average altitude of 3,400 meters, with the biggest challenges being the dry weather and lower oxygen levels. (Photo: China News Service/Zhong Xin)
![](http://www.ecns.cn/hd/2019/08/12/0c1eea97c55549d9b5949c4a4e8c2f61.jpg)
A scene from the 400-km Gobi Desert challenge in Northwest China’s Qinghai Province, Aug. 11, 2019. Forty-seven participants joined the challenge that started at the Mars Camp in Lenghu Town and passed through the Yadan landform, a dry area with a landscape formed by wind erosion. The route has an average altitude of 3,400 meters, with the biggest challenges being the dry weather and lower oxygen levels. (Photo: China News Service/Zhong Xin)
![](http://www.ecns.cn/hd/2019/08/12/f09d111d8b3648e6a706b58c9fc61c33.jpg)
A scene from the 400-km Gobi Desert challenge in Northwest China’s Qinghai Province, Aug. 11, 2019. Forty-seven participants joined the challenge that started at the Mars Camp in Lenghu Town and passed through the Yadan landform, a dry area with a landscape formed by wind erosion. The route has an average altitude of 3,400 meters, with the biggest challenges being the dry weather and lower oxygen levels. (Photo: China News Service/Zhong Xin)
![](http://www.ecns.cn/hd/2019/08/12/aacf56ab68154c25a39310fd839b1639.jpg)
A scene from the 400-km Gobi Desert challenge in Northwest China’s Qinghai Province, Aug. 11, 2019. Forty-seven participants joined the challenge that started at the Mars Camp in Lenghu Town and passed through the Yadan landform, a dry area with a landscape formed by wind erosion. The route has an average altitude of 3,400 meters, with the biggest challenges being the dry weather and lower oxygen levels. (Photo: China News Service/Zhong Xin)