Longmen Farm is located in wudalianchi city, Heilongjiang Province, in the middle of Heihe region, at the southern foot of Xiaoxing 'anling Mountain. It is like a huge gem set in the sunshine on the summit. The farm has a vast territory, bordering Xiaoan Forest Farm and Xing 'an Township in the east; South of Xianghe Farm; West of Gudong River and Yinlonghe Farm; It is bordered by wudalianchi city Breeding Farm and Lianhua Township in the north. The farm is rich in resources, including many rare animals such as black bears and flying dragons, well-known wild fruits such as hazelnuts, Hericium erinaceus, auricularia auricula, mushrooms and yellow flowers, which are known as the "four great delicacies". The primary secondary forest dominated by poplar and birch is lush, which adds beauty to the farm. Yinlong River, Longmen River and Woniu River flow from east to west from south, middle and north respectively, like three jade belts danced by girls, making Longmen full of vitality.