Before the opening of the Qinghai-Xizang Railway, Chogo, a photojournalist with Xinhua, took a photo in Damxung County on June 17, 2006. He captured herdswoman Pema Lhamo sitting with her daughter Nyima Lhamo as they watched the first train passing through the Qinghai-Tibet Plateau. Chogo's photo bears witness to Nyima Lhamo's growth and the profound changes the Qinghai-Xizang Railway has brought to the plateau over the past 20 years.