February 26

On Feb. 26, 1999, the accurate surveying and mapping data about the Yarlung Tsangpo Grand Canyon were released by the National Administration of Surveying, Mapping and Geoinformation. The Yarlung Tsangpo Grand Canyon, whose entrance is located at Baxika Village, Medog County, Tibet, is 504.6 kilometers long. The average depth and the deepest depth of the canyon are 2268 meters and 6009 meters, respectively.

On February 26, 1987, Tibet started to issue identity cards to its residents step by step.