sanyuanquIntroduction：Introduction to Sanyuan: Sanyuan District, in the middle of the Ming Dynasty, it was the middle town of Langzhong. It is located in the southwest of Sanming City, connected to Meilie District in the east, adjacent to Yong'an City in the west, bordering Datian County in the south, and bordering Mingxi County in the north. It is between 26°5′ north latitude and 117°5′ east longitude. The terrain of the whole area slopes from the northwest to the east. It is located in the catchment area between the Wuyi Mountains and the Daiyun Mountains. The Meili Basin in the Shaxi Valley is an urban area with an altitude of over 1,500 meters. Five rivers, such as Shaxi, are located in Shaxi River. Yingxia Railway, National Highway 205, Provincial Highway 102, 212, Fuyin Expressway and Quansan Expressway run through the whole territory. The Geshitun Nature Reserve in Sanyuan District is a primeval forest park. Passing through the dialect of Yongan dialect.