Mt. Qomolangma remeasuring surveyors arrive at base camp at a height of 6,500 meters(1/10)

Chinese surveyors hike toward a higher spot after setting out from a base camp at an altitude of 5,200 meters in southwest China's Tibet Autonomous Region on May 7, 2020. The Chinese measurement team of over 30 surveyors Thursday arrived at a base camp at an altitude of 6,500 meters, as they endeavor to accomplish a mission to remeasure the height of the world's highest mountain. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward a higher spot after setting out from a base camp at an altitude of 5,200 meters in southwest China's Tibet Autonomous Region on May 7, 2020. The Chinese measurement team of over 30 surveyors Thursday arrived at a base camp at an altitude of 6,500 meters, as they endeavor to accomplish a mission to remeasure the height of the world's highest mountain. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward a higher spot after setting out from a base camp at an altitude of 5,200 meters in southwest China's Tibet Autonomous Region on May 7, 2020. The Chinese measurement team of over 30 surveyors Thursday arrived at a base camp at an altitude of 6,500 meters, as they endeavor to accomplish a mission to remeasure the height of the world's highest mountain. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward a higher spot after setting out from a base camp at an altitude of 5,200 meters in southwest China's Tibet Autonomous Region on May 7, 2020. The Chinese measurement team of over 30 surveyors Thursday arrived at a base camp at an altitude of 6,500 meters, as they endeavor to accomplish a mission to remeasure the height of the world's highest mountain. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward the advance camp at an altitude of 6,500 meters after setting out from a base camp at an altitude of 5,200 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region on May 7, 2020. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward the advance camp at an altitude of 6,500 meters after setting out from a base camp at an altitude of 5,200 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region on May 7, 2020. (Photo by Lhagba/Xinhua)

Chinese surveyors hike toward the advance camp at an altitude of 6,500 meters after setting out from a base camp at an altitude of 5,200 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region on May 7, 2020. (Photo by Lhagba/Xinhua)

Photo taken on May 7, 2020 shows the advance camp at an altitude of 6,500 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region. (Photo by Zhaxi Cering/Xinhua)

Chinese surveyors arrive at the advance camp at an altitude of 6,500 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region on May 7, 2020. (Photo by Zhaxi Cering/Xinhua)

Chinese surveyors rest at the advance camp at an altitude of 6,500 meters at Mount Qomolangma in southwest China's Tibet Autonomous Region on May 7, 2020. (Photo by Zhaxi Cering/Xinhua)