Erlang Mountain is located 1 km west of Shenmu City, Shaanxi Province, with an altitude of 1,028 meters. It is commonly known as "West Mountain" and is also called "Hump Mountain" because of its hump-like shape. In the 13th year of Zhengde in the Ming Dynasty (1518), Emperor Wuzong named it "Bijia Mountain". In December 2020, it was rated as a national AAAA-level tourist attraction. The mountain is oriented north-south. The existing ancient building complex that integrates Buddhism, Taoism, and Confucianism is distributed along the thousand-meter ridge, including more than 100 historical buildings such as Dizang Cave Grottoes, Erlang Temple, and Haoran Pavilion. The Ming Dynasty screen wall preserves the stone carvings of "Tiger Roaring Picture" and "Nine Dragons Playing in the Water Picture". The scenic area is a key cultural relic protection unit in Shaanxi Province. There are existing cultural relics such as murals, steles, and cliff inscriptions from the Ming and Qing Dynasties.