Jingbian East Station, Yang Er Village, Yangqiaopan Town, Jingbian County, Yulin City, Shaanxi Province. Haoji Application Workshop of Yan 'an Locomotive Depot carefully studied the work arrangement of the group company and the depot in the third quarter, judged the safety risks, refined the implementation measures, focused on the safety key points, and strictly implemented the "four guarantees" task. Haoji Application Workshop of Yan 'an Locomotive Depot was located at Jingbian East Station, Yang Er Village, Yangqiaopan Town, Jingbian County, Yulin City, Shaanxi Province. Yan 'an, referred to as "Yan" for short, is a prefecture-level city in Shaanxi Province. It is the first mausoleum in the world-the mausoleum of the Yellow Emperor, the ancestor of the Chinese nation: the location of the Mausoleum of the Yellow Emperor, which is a national holy place and a revolutionary holy place in China.