Introduction to Mass Tomb: Located 200 meters north of Friendship Pass, it is the site of the Sino-French war. In 1885, during the Sino-French War, Feng Zicai and others led the Qing army to fight against the French invaders. The bodies of most of the Qing soldiers who sacrificed their lives for the country during the Anti-French War were collected and buried here. Due to the large number of people, it was called the "Ten Thousand Graves" . In order to commemorate the spirit of the warriors who sacrificed their lives for the country, people erected tombs and erected monuments on the hillside during the Qingming Festival in the 24th year of the reign of Emperor Guangxu of the Qing Dynasty (1898). In the 31st year of the Republic of China, Hai Jingqiang, commander of the 188th Division of the Kuomintang Army, engraved the inscription.